Old washing machine (two pipes) into new piping (one pipe)

Bendy_House

Use the Y-splitter that Siraz linked to. Simple as that.

It won't consume any more electrical power heating up the cold water than a modern W/M does; kW in = temp rise.

It will likely have a thermostat sensing the drum so that the wash will likely only get under way properly after the required temp has been reached. If it doesn't have this, then there's a chance the 'wash' will have been well under way before the required temp has been achieved, but tbh getting to 30 or 40oC just shouldn't take that long anyway.

Does it have a temp control that goes down as low as 30 or 40oC?!

Section62

Bendy_House said:

It won't consume any more electrical power heating up the cold water than a modern W/M does; kW in = temp rise.

The more modern machines use a lot less water, and less water = fewer kWh to get to the required temperature.

The difference can be significant, but probably not worth swapping the machine unless a more modern one can be got for free.

Bendy_House

Section62 said:

Bendy_House said:

It won't consume any more electrical power heating up the cold water than a modern W/M does; kW in = temp rise.

The more modern machines use a lot less water, and less water = fewer kWh to get to the required temperature.

The difference can be significant, but probably not worth swapping the machine unless a more modern one can be got for free.

Good point.  :-)

grumbler

shiraz99 said:

Something like this might work:

https://www.screwfix.com/p/washing-machine-y-piece/81000?cm_sp=managedredirect-_-plumbing-_-washingmachineypiece&_requestid=280397

Or something better:

Norman_Castle

I fitted a Y connector to my old machine years ago and forgot about it until reading this thread. It was fitted due to the long pipe run from the boiler and amount of time it takes for a cold boiler to heat up. I expect when connected to the hot feed it was filling with cold water and leaving the heated water in the pipework.  They're only a few quid so definitely worth trying.

shiraz99

grumbler said:

shiraz99 said:

Something like this might work:

https://www.screwfix.com/p/washing-machine-y-piece/81000?cm_sp=managedredirect-_-plumbing-_-washingmachineypiece&_requestid=280397

Or something better:

Not sure why that is "better" than a simple Y piece connector. A lot more expensive I'd imagine, but better 🤔

grumbler

shiraz99 said:

grumbler said:

shiraz99 said:

Something like this might work:

https://www.screwfix.com/p/washing-machine-y-piece/81000?cm_sp=managedredirect-_-plumbing-_-washingmachineypiece&_requestid=280397

Or something better:

Not sure why that is "better" than a simple Y piece connector. A lot more expensive I'd imagine, but better 🤔

Because the only way I see how this "simple Y piece connector" can be used is with 3 hoses. The cheapest hose at SF is £4.21.

"A lot more expensive" hose is in fact just £6.25. Not sure about the delivery, but this was just a random result of google search.

Also, I haven't seen very short normal hoses, so a combination of 3 is likely to be very (twice as) long. This can be inconvenient unless the machine is far from the tap.

All machines with hot and cold inlets that I've seen came with a different Y piece connector that could be fitted directly to two inlets and needed only one hose for plumbing.

Section62

grumbler said:

Because the only way I see how this "simple Y piece connector" can be used is with 3 hoses

Two hoses is all you need - one to the 'hot' connection, one to the cold.  The third arm of the adaptor fits directly to the 3/4BSP valve/fitting.

grumbler said:

Also, I haven't seen very short normal hoses, so a combination of 3 is likely to be very (twice as) long. This can be inconvenient unless the machine is far from the tap.

It's the equivalent of one hose length - two hoses run in parallel from the machine to just next to the valve.  Just as they would if going to separate hot/cold supplies.

grumbler

Section62 said:

grumbler said:

Because the only way I see how this "simple Y piece connector" can be used is with 3 hoses

Two hoses is all you need - one to the 'hot' connection, one to the cold.  The third arm of the adaptor fits directly to the 3/4BSP valve/fitting.

grumbler said:

Also, I haven't seen very short normal hoses, so a combination of 3 is likely to be very (twice as) long. This can be inconvenient unless the machine is far from the tap.

It's the equivalent of one hose length - two hoses run in parallel from the machine to just next to the valve.  Just as they would if going to separate hot/cold supplies.

This makes sense, I stand corrected. However, personally I'd use this Y-piece only with a valve facing down, that isn't always the case.

Also, the "lot more expensive"point remains moot unless the OP already has the second hose.

chrisw

grumbler said:

Section62 said:

grumbler said:

Because the only way I see how this "simple Y piece connector" can be used is with 3 hoses

Two hoses is all you need - one to the 'hot' connection, one to the cold.  The third arm of the adaptor fits directly to the 3/4BSP valve/fitting.

grumbler said:

Also, I haven't seen very short normal hoses, so a combination of 3 is likely to be very (twice as) long. This can be inconvenient unless the machine is far from the tap.

It's the equivalent of one hose length - two hoses run in parallel from the machine to just next to the valve.  Just as they would if going to separate hot/cold supplies.

This makes sense, I stand corrected. However, personally I'd use this Y-piece only with a valve facing down, that isn't always the case.

I fitted one facing forward, turned the tap on, pushed the machine back and snapped it off....