Whitegoods Help article

How to repair a plastic outer drum

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Quick Answer

A thin crack in a plastic washing machine drum can often be repaired using a soldering iron to melt and seal the plastic, followed by a layer of Debor flexible sealant as a second defence. Sealing tape is a third option for cracks on flat surfaces. Holes are much harder to repair successfully and may require a replacement drum.

It is sometimes possible to repair a cracked or holed plastic washing machine outer drum rather than replacing it. This guide covers three repair methods and explains how to identify and remove the cause of the damage before starting any repair.

Before Starting Any Repair – Find the Cause

Coins are a common cause of cracks and holes in plastic drums, but any metal object can cause damage. Before attempting any repair, the object that caused the damage must be found and removed – otherwise it will simply cause further damage.

A thin crack was most likely caused by the impact of a metal object. The object will still be inside the machine somewhere. A large hole may mean the object was punched right through – check the floor around the machine and inside the base of the appliance.

Carefully examine the inner drum for dents, which are evidence of an obstruction. Check inside the sump hose and pump filter. Tilt the machine gently from side to side and front to back – if something slides around, it is still inside.

For help retrieving a stuck object: how to remove something stuck in a washing machine drum.

Method 1 – Soldering Iron

A soldering iron is an effective tool for sealing thin cracks in plastic drums. The technique involves using the heat of the iron to melt the surrounding plastic and fuse it across the crack.

Get the iron fully hot before starting. Work slowly and gently along the crack, bringing plastic from each side of the crack over to melt into it. Be careful not to apply too much pressure – a hot soldering iron can go straight through thin plastic drum material very easily. If the iron cools before the crack is fully sealed, unplug it, allow it to reheat, and continue.

Ideally the crack should be sealed from both inside and outside the drum. In practice this is often not possible as many modern drums are welded together and cannot be stripped down. If the drum has already been stripped for inspection, sealing from the inside as well is worthwhile.

Method 2 – Washing Machine Sealant

After sealing a crack with a soldering iron, applying a layer of flexible sealant over the repair provides additional protection. Washing machine engineers use a specialist product called Debor sealant, which is both flexible and heat-resistant. Roughen the area around the repair with sandpaper, then apply a generous patch of sealant covering the sealed crack and the surrounding area.

Method 3 – Sealing Tape

Waterproof sealing tape is a third option for cracks on flat sections of the drum. Products such as Gorilla tape, which is marketed as weatherproof and waterproof, may be suitable for this application. Apply plenty of tape with generous overlaps to ensure a thorough seal. Check the repair periodically – if the tape starts to peel at the edges, the seal is at risk of failing.

Repairing a Hole in the Drum

Holes are significantly harder to repair than cracks. A large hole, or one in an awkward location, will most likely require a replacement outer drum or a new machine.

If the hole is small and accessible, and especially if the piece of plastic that was punched out is still available, a repair may be possible. If the piece fits back in place without pushing through into the drum, try bonding it with epoxy resin such as Araldite. Once bonded, seal the edges with a soldering iron and cover the entire repair with waterproof tape.

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Only carry out a drum repair if completely confident it will not leak.

A failed repair during a wash cycle can result in a serious flood. If there is any doubt about the integrity of the repair, do not use the machine until it has been checked by a professional.

Can You Claim on Home Insurance?

If the damage was caused by a foreign object getting inside the machine, it may be covered under accidental damage cover on a home contents insurance policy. Check the policy terms – some policies specifically cover appliance damage caused by accidental means.

Frequently Asked Questions

Can a cracked washing machine drum be repaired?

Often yes, if the crack is thin and the cause of the damage has been found and removed. A soldering iron can be used to melt and seal the plastic, followed by flexible sealant such as Debor as a second layer of protection. Waterproof sealing tape is a further option for cracks on flat sections. A successful repair depends on fully sealing the crack – any remaining leak path can result in flooding.

What causes cracks and holes in a washing machine drum?

Metal objects – most commonly coins – that get into the outer drum during a wash. The spinning action drives the object against the plastic wall at speed, causing cracks or punching a hole through it. The object causing the damage must be found and removed before any repair is attempted, otherwise it will cause further damage.

What if the damage is a hole rather than a crack?

Holes are harder to repair. A large hole or one in a difficult location will usually require a replacement outer drum or a new machine. A small, accessible hole may be repairable if the broken piece of plastic is available – it can be bonded back with epoxy resin, sealed with a soldering iron, and covered with waterproof tape. Any such repair must be watertight before the machine is used.

Last reviewed: April 2025.

Discussion

44 Comments

Grouped into 29 comment threads.

Andy Trigg (Whitegoodshelp) 2 replies Nice one Jeremy. Good luck and keep us informed.

Nice one Jeremy. Good luck and keep us informed.

Jeremy Bird

Likely replying to Andy Trigg (Whitegoodshelp)

Hi Andy, quick update. I have the new hose ready to be installed but I still haven’t managed to remove the inner perforated stainless drum … the spin bowl. I’ve removed its attachment device to the main gearbox shaft, but the thing simply won’t break free. I’ve tried shock, penetrating oil, heat (blowtorch), time, anger, swearing at it …
I need to remove it because when the hose goes through the main plastic water-containing tub, it’s clipped on the inside. The only way to get to this clip is by removing the spin bowl.
So this is what I’ve done. I cut the old hose off leaving about 1″ proud on the outside of the plastic tub. I found a circular piece of plastic, actually the top of an old bottle of bubble bath! … quite strong, won’t collapse under load … and I pushed it into the bit of old hose left sticking out of the plastic tub. Secured it tightly with a worm-drive pipe clamp. I ran the machine through a full cycle (remember the spin bowl is still unattached other than being rusted-on) on the assumption that one day, the spin bowl will break free. If and when that happens, I’ll fit the new hose, easy. But until that times happens, I have an as-new machine again!
I’ve done my first load of washing, without floods all over the laundry floor, in about 6 months! So now the Hoover Elite 920 is well into its fourth decade of continuous use.
Will update if and when the spin bowl finally gives up and breaks free and I get to finish the job.
Cheers,

Andy Trigg (Whitegoodshelp)

Likely replying to Jeremy Bird

Hi Jeremy. I’ve never stripped down a top loading washing machine, only ever worked on front loading machines. However, to take the inner drum out the drum pulley is usually a left hand thread, and you need a heavy mallet with plastic ends to knock it out. But on such an old machine if you force out the drum you are likely to find the seals all rotted and worn inside and disturbing them will likely result in leaks and collapsed bearings if reassembled without replacing the seals.

Jeremy Bird 2 replies Hello again Andy, quick follow-up to my last. I've found a hose ... it's a miracle, a 'new' unused hose but obviously manufactured a long time ago, sitting way down the back of an appliance parts store! So now when I fit it, I know from the warning on that other site that I need to not only remove the rear gal. panel, but also remove the inner stainless steel perforated bowl assy so as to get access to where the hose is clipped on the *inside* of the plastic outer water-containment tub. As with all things for first-timers, it's not obvious. So my question is, do you know where I might try for a service manual for the machine, a Hoover Elite 920 top loader? Manual download sites have probably taken over from lyrics sites as being fraught with danger ... "here be dragons" ... so I'm always wary. Thank you again.

Hello again Andy, quick follow-up to my last. I’ve found a hose … it’s a miracle, a ‘new’ unused hose but obviously manufactured a long time ago, sitting way down the back of an appliance parts store! So now when I fit it, I know from the warning on that other site that I need to not only remove the rear gal. panel, but also remove the inner stainless steel perforated bowl assy so as to get access to where the hose is clipped on the *inside* of the plastic outer water-containment tub. As with all things for first-timers, it’s not obvious. So my question is, do you know where I might try for a service manual for the machine, a Hoover Elite 920 top loader? Manual download sites have probably taken over from lyrics sites as being fraught with danger … “here be dragons” … so I’m always wary. Thank you again.

Andy Trigg (Whitegoodshelp)

Likely replying to Jeremy Bird

Hello Jeremy. If this machine is over 30 years old I would seriously look into replacing it rather than stripping it down. Almost all of the parts are obsolete and if you have to strip it down and disturb main seals I wouldn’t hold out much hope of them remaining water tight. Over 30 years is ridiculously long for a washing machine, it would be more remarkable if it lasted too much longer even if you managed to fix it. The only manuals available are user manuals.

Jeremy Bird

Thanks Andy. Can’t disagree with anything you say. Or, without the double negative, I agree with all you say! With that said though …. call me sentimental, but I just can’t bring myself to dump this thing for want of a hose! If only that damn hose wasn’t such a nightmare to replace. But now that I’m this far, I have to see it through. At the moment I’m at the stage of being unable to get the inner (perforated stainless) drum out, so the job is again on hold while I ponder. If a miracle happens and I actually get this thing working again and it heads towards its next milestone of forty years’ continuous use, I’ll report back. Your input and advice have been really appreciated, thank you.

Andy Trigg (Whitegoodshelp) 2 replies I don't think it is likely to be able to do a decent lasting repair to the bracket if it has broken off. There should be some plastic sleeve or rubber sleeve but it has most probably fallen off somewhere. Check inside the base of the machine. It is very unusual for a plastic bracket for fixing the motor on to break. Just in case I'm not totally understanding exactly what has happened feel free to send me a picture.

I don’t think it is likely to be able to do a decent lasting repair to the bracket if it has broken off. There should be some plastic sleeve or rubber sleeve but it has most probably fallen off somewhere. Check inside the base of the machine. It is very unusual for a plastic bracket for fixing the motor on to break. Just in case I’m not totally understanding exactly what has happened feel free to send me a picture.

Richard

Likely replying to Andy Trigg (Whitegoodshelp)

Hi Andy,

Thanks for the prompt response – I suspect you may be right about a decent lasting repair but I will send the photos. I did wonder if I could wire something back into place but it would be a bit of a bodge!.

I may be missing something, but I cannot see how to attach a photo to my comments. Please advise me how to do that.

BTW it is actually a WMT01, but I don’t suppose that changes anything!

Richard

Andy Trigg (Whitegoodshelp)

Likely replying to Richard

Hello Richard, just send me a message using my contact form and I’ll email you back and you can attach the photos to a reply.

Andrea Dunn 1 reply We have had a lamona washing machine since February,noticed water leakage.called the engineer out. He sent his report stating a foreign object has punctured the drum and is unrepairable. The retailer as said it is not their responsibility albeit they did not mention it was a plastic drum when we were sold it. Do I have a case or a lost cause.

We have had a lamona washing machine since February,noticed water leakage.called the engineer out. He sent his report stating a foreign object has punctured the drum and is unrepairable. The retailer as said it is not their responsibility albeit they did not mention it was a plastic drum when we were sold it. Do I have a case or a lost cause.

Andy Trigg (Whitegoodshelp)

Likely replying to Andrea Dunn

Hello Andrea. I would think not. Do you have accidental damage cover on your house insurance by any chance? That may cover it.

They wouldn’t need to mention anything about how it’s made, and at the end of the day something left in pockets that damages the washing machine is always a customer’s fault – it’s an age old problem. When outer drums were made of metal it was much rarer for damage to occur though it still did in extreme cases. You could easily write off a brand new washing machine on the first day of use so always check pockets of everything before putting them in the washing machine. It should be the responsibility of everyone in the house to not leave anything inside pockets but ultimately the person putting them in the drum needs to double check. It’s very annoying.

Andy Trigg (Whitegoodshelp) 1 reply To be honest Adrian, at 12 years old I wouldn't think it was worth having such a major job done. It looks like quite a few parts are already obsolete for this machine. And I can only find the tub front as a spare part but not the tub rear so it may be impossible to get it repaired anyway.

To be honest Adrian, at 12 years old I wouldn’t think it was worth having such a major job done. It looks like quite a few parts are already obsolete for this machine. And I can only find the tub front as a spare part but not the tub rear so it may be impossible to get it repaired anyway.

Adrian Bruder

Likely replying to Andy Trigg (Whitegoodshelp)

Thank you Andy, can you advise where I could buy a new one with the outer drum made of metal not plastic please ? Thanks again

Andy Trigg (Whitegoodshelp) 1 reply Sorry for a late reply Jamie. If the old drum is leaking between the 2 drum halves only a strip down and replacement seal will fix it properly. Yes, Bosch are now almost a budget brand with many of their appliances. Totally different from the Bosch of old. Only Miele have really stuck to their original high build quality ethos but even their appliances are less well-made than they used to be overall.

Sorry for a late reply Jamie. If the old drum is leaking between the 2 drum halves only a strip down and replacement seal will fix it properly.

Yes, Bosch are now almost a budget brand with many of their appliances. Totally different from the Bosch of old. Only Miele have really stuck to their original high build quality ethos but even their appliances are less well-made than they used to be overall.

Jamie

Thank you for your reply Andy.

I dropped the Siemens off at our local recycling centre yesterday and mentioned it was fully functioning bar the slight leak; I was told that unfortunately they’re not allowed to pass anything on to someone who could fix it; there’s cameras everywhere and they have to drop it in the skip for white goods recycling, which is a real shame because I know in the old days a lot of stuff got found/passed along at local tips to be fixed up and reused. Hopefully they’ll at least recycle all the materials in the machine though.

We have a brand new Miele WKF311 arriving today. I got a great deal from Co-op Electrical and Miele said we’re OK to register for the 5 year warranty they’re currently offering too.

All the best,

Jamie.

Andy Trigg (Whitegoodshelp) 1 reply Hello Tim. My advice is only about sealing hairline cracks. I'm presuming you mean it is leaking from where the 2 halves of the outer tub are joined together? This is quite unusual, if you are witnessing the leak dripping from the bottom of the outer tub make sure water isn't running from somewhere higher up as water can drip from places in a deceptive manner. If water is leaking from a seal joining the 2 halves together it would need a replacement seal. That is if one is available as many outer tubs in washing machines now are designed not to be repaired and some cannot even be taken apart because the 2 halves are actually welded together.

Hello Tim. My advice is only about sealing hairline cracks. I’m presuming you mean it is leaking from where the 2 halves of the outer tub are joined together? This is quite unusual, if you are witnessing the leak dripping from the bottom of the outer tub make sure water isn’t running from somewhere higher up as water can drip from places in a deceptive manner.

If water is leaking from a seal joining the 2 halves together it would need a replacement seal. That is if one is available as many outer tubs in washing machines now are designed not to be repaired and some cannot even be taken apart because the 2 halves are actually welded together.

Jamie

Likely replying to Andy Trigg (Whitegoodshelp)

Hi Andy,

We have a Siemens WM16S493GB/01 washing machine. It’s 9 years old. Usual family of four use (around 4-6 loads each weekend).

I’ve had to repair it on a number of occasions, but mainly the same fault; I ended up replacing an entire run of 240V mains cable to the motor, must have been a bad batch of cable because it just kept splitting and then arcing. Since then it’s been fine, but it triggered an F23 error the other week, which indicates water in the sump.

On investigation, it’s leaking from the seal between the two halves of the plastic outer tub just like Tim described in the last comment here for his LG washing machine. It was leaking from an area around one of the bolts on one side and definitely not running down from anywhere else.

I’ve tried sealing with Debor all along that edge, but it’s not easy as the clips get in the way obscuring the join and the leak just moved to the other side and now only under spin (before even just standing water in the drum would seep). The amount of water is negligible, so for now a plastic bowl taped to the base allowed the machine to run, but it’s obviously not a long term solution and I don’t like that it’s close to the motor.

I also noticed one of the concrete blocks on the front of the drum has split half way. It’s still holding together with the bolts and the sealant they permanently glued these to the outer tub with.

The seal kit is around £25, but the job to fit this is immense as you know, and probably requires some specialist tools I don’t have. Not proud of this, but it’s a tight space and I know one of the bolt heads shredded when I went round checking they were tight (there was a little movement, presumably just the years of use), so that one won’t loosen off again now.

So I’m in a quandary because the rest of the machine is still functioning perfectly, which makes me loath to throw it out, but I also know I could destroy it if I try and replace the outer tub seal. Also, if I was doing that, I’d probably replace the door seal too (it’s exhibiting the usual mouldy nature of one this old) and then it’s starting to get more expensive; which makes me wonder how the bearings are, and what else might drop dead soon after even if I managed to fix the leak.

I worked out it’s cost us around £1.60 per week over it’s lifetime, which is probably a good way of looking at it, but the environmental side of me is agitated that it can’t fairly easily or cost effectively be repaired.

With the Siemens brand and the original purchase price I thought I’d bought a quality product, but it hasn’t felt like that over the years and it hasn’t lasted as long as the old Bosch machine it replaced. In fact, it’s the newest machine in the kitchen; I have a Bosch dishwasher and tumble dryer, both of which have never really had a problem in over 16 years (had to replace the heating element in the dryer the other year, but other than that, nothing).

Your site has been very helpful in my research for future options and I’m definitely going to head down the Miele road having looked up a video of their factory online and eyed up the superior build quality evident in their drums, suspension, counterweights, and everything really, and the fact they look a lot more serviceable. Sad that they’re the only ones doing this though.

Anyway, I just wondered if you had any thoughts/input on my situation.

Thank you in advance for your time and also for the valuable information on your website.

Best wishes,

Jamie.

David Slater 1 reply Hello i have a swan sw2010w washing machine that the front counterbalance has sheered off all bolts and plastic sleeves thus the concrete counterbalance has dropped and there is now no way of reattaching it other than inserting bolts from inside the outer plastic drum casing and then attaching nuts to these bolts on the outer of the counterbalance or unless epoxy resin may give a strong enough of a bond to retain the concrete conterbalance in place. Any help would be appreciated Thank you Dave

Hello i have a swan sw2010w washing machine that the front counterbalance has sheered off all bolts and plastic sleeves thus the concrete counterbalance has dropped and there is now no way of reattaching it other than inserting bolts from inside the outer plastic drum casing and then attaching nuts to these bolts on the outer of the counterbalance or unless epoxy resin may give a strong enough of a bond to retain the concrete conterbalance in place. Any help would be appreciated Thank you Dave

Andy Trigg (Whitegoodshelp)

Likely replying to David Slater

Hello David. I would say it is likely to be impossible to fix a drum where the bolts have sheared off. The concrete weight is very heavy and is shaken around very violently during spin so I can’t imagine any resin being strong enough to deal with that. The only cure is a complete new outer drum I’m afraid. The machine is scrap.

Andy Trigg (Whitegoodshelp) 1 reply I would say you can't repair large gashes or holes. The advice in my article is only about sealing cracks. The only thing I would attempt to use in such circumstances is something called Milliput, which is like two large sticks of different coloured plasticine (or putty). When mixed together they set rock hard and will even set under water. I used to use it all the time but large holes may be difficult. You'd need to rough up the surrounding area and make a patch much bigger than the holes. As long as it sticks properly to the drum and never comes loose it is a great product.

I would say you can’t repair large gashes or holes. The advice in my article is only about sealing cracks. The only thing I would attempt to use in such circumstances is something called Milliput, which is like two large sticks of different coloured plasticine (or putty). When mixed together they set rock hard and will even set under water. I used to use it all the time but large holes may be difficult. You’d need to rough up the surrounding area and make a patch much bigger than the holes. As long as it sticks properly to the drum and never comes loose it is a great product.

steeve

Hi andy, i was about to buy the milliput product when i noticed that the crack is a lot more serious than what i thought…It pretty much goes all around the outer drum and i would basically need to disassemble the drum to fix it which is not worthy for me…Thnks a lot for your support..cheers

William Robert 1 reply Hi I discovered a similar problem with a damaged outer drum on a Bosch Maxx Classic WAE22260AU. The outer drum has circular damage (sort of crescent shaped), which ultimately wore through to leak in two areas, symmetrically bottom/right and top/left. The hole is now 5mm by 30mm in its largest spot. This looks like it wore through from the inside. It is not at a The two circular damages traces stretch over about 25% of the circumference of the outer drum, starting small and getting wider and deeper towards their ends where the holes are. One thing I also noted, the drum is not centered perfectly with the outer drum. However, when I rotate the inner drum, I cannot see any contact or chafing between the two, even when I push the plastic of the outer drum inwards with my thumbs. I checked for worn bearing (pushing and pulling the inner drum) but seems ok. I have the imression this developed over years of use. Along the traces I found dried-up washing powder, possibly mixed up with plastic filings. Anyone have a clue how this could have happened, or seen this before on a Bosch like this one? Photos available. Many thanks

Hi I discovered a similar problem with a damaged outer drum on a Bosch Maxx Classic WAE22260AU.

The outer drum has circular damage (sort of crescent shaped), which ultimately wore through to leak in two areas, symmetrically bottom/right and top/left. The hole is now 5mm by 30mm in its largest spot.

This looks like it wore through from the inside. It is not at a

The two circular damages traces stretch over about 25% of the circumference of the outer drum, starting small and getting wider and deeper towards their ends where the holes are.

One thing I also noted, the drum is not centered perfectly with the outer drum. However, when I rotate the inner drum, I cannot see any contact or chafing between the two, even when I push the plastic of the outer drum inwards with my thumbs.

I checked for worn bearing (pushing and pulling the inner drum) but seems ok.

I have the imression this developed over years of use. Along the traces I found dried-up washing powder, possibly mixed up with plastic filings.

Anyone have a clue how this could have happened, or seen this before on a Bosch like this one?

Photos available.
Many thanks

Andy Trigg (Whitegoodshelp)

Likely replying to William Robert

Hello William, you can always send me photos by using my contact form to get in touch and replying to my email back to you. The only thing I’ve ever known damage an outer tub is a coin or other metal object left in pockets. Sometimes the coin can punch right through and disappear. Usually there will be some indentation on the inner drum as evidence but if a coin was pushed through the outer tub by a part of the drum underneath one of the 3 lifter bars it may not leave any evidence visible from our side of the drum.

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