This is the second article on installing a washing machine. If you haven’t seen the first part which looked at the basics and then concentrated on fill hose related advice check it out here – How to install a washing machine. This article looks at how to install the drain hose and water pressure.
You need to make sure the drain hose is fitted according to the instruction book. If you don't have the instruction book you might be able to download one here – How to download an instruction book manual for a washing machine or other white goods appliance
If you don't fit the drain hose properly you can get problems such as water siphoning into the washing machine or siphoning down the drain, bad smells, or a flood. Read this article for more details and tips about drain hose installation – 5 tips for when connecting a washing machine
Drain hose not long enough?
The drain hose on a typical new washing machine is not long enough to go very far. Cost cutting has seen drain hoses reduced to a minimum so that they are only really suitable for when the plumbing is right next to the washer, which is commonly not the case. A drain hose can be extended using a specially designed connector (obtainable from a plumbers merchant or maybe a DIY store), or if up to it you could replace the drain hose with an extra long 2.5 metre drain hose which can be obtained from places like B&Q or online –
- Drain Hose extension Kit 19mm To 22mm
- Universal Washing Machine & Dishwasher 2.5M Waste Drain Extension Kit
- Buy washing machine drain hoses and accessories
Tips for installing a washing machine – water pressure
Depending on your water pressure, it may be advisable to not turn both washing machine taps on full. Some of the cheaper washing machines can leak from the soap dispenser drawer if the water pressure is too high (Leaking from soap drawer). If you know you have high cold water pressure, or a combination boiler supplying the hot water at high mains pressure, you may be better off adjusting the water pressure down a little. See the linked article for full details, also make sure the washing machine doesn’t slope forward.
Most new washing machines are now cold fill washing machines. This may mean that you have a hot and cold water tap, but the new washer only has a cold water valve and one fill hose. If so, just connect up the cold fill hose to the washing machine and leave the hot water tap turned off. To be on the safe side you should cap off the unused hot water tap by screwing a special blanking cap onto it because I've heard of several cases where an unused hot tap has started to seep water out. I’ve even known cases where the water tap (fitted behind the washer) has been knocked and turned partially on by the washing machine itself as it moved around on spin. What should I do with the old hot water tap when connecting a cold fill washing machine?
Water pressure too low?
If you have very low water pressure a modern washing machine may not work. This is because they only allow a set time to fill with water and if the correct water level isn't reached in time the washing machine will usually abort the program and report an error.
Most washing machines should work with a minimum pressure of 1 Bar (UK) which is the force required to move water to a height of 10 metres but some will work with as little as half a bar. The reason washers abort if the fill is too slow is are described in this article Low water pressure and washing machines
More information and advice on installing a washing machine
- How to install a new washing machine (part 1)
- Connecting a washing machine to a softened water supply
- Do new washing machines use the same hoses and plumbing?
- 5 things to check for after repairing or installing a washing machine
- Washing machine wont empty water after installing in a new house
- Connected washing machine but now it just constantly fills with water and goes down the drain
- If you connect a washing machine in a new house and the washing machine won’t drain the water
- Aqua stop hoses for washing machines & dishwashers (What is an aqua stop hose and do you have to use it?)
- Washing machine is a hot and cold fill, but I only have a cold water supply
- What should I do with the old hot water tap when connecting a cold fill washing machine?
- Don’t connect a cold fill washing machine to the hot water supply
- Can I connect a cold fill washing machine to both the hot and cold water taps?