specialist in pump installations

[crash87]

Please help, I have purchased two different pumps, and I don't want to get the 3rd one wrong too.

I need 5 litres in 15 seconds in order to operate this smart toilet:

Black One-Piece Floor Mount Elongated Smart Toilet & Bidet with Seat Horizontal Outlet-Homary

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I live in a flat in Central London - old building, water pressure is not good. Can someone please advise me which pump type to purchase.

Thank you!

 

[robinbanks]

A cistern?

 

[muggles]

You can't legally pump the mains at a greater flow rate than 12 litres per minute without permission from the water authority, which you're highly unlikely to get in a block of flats as you'll potentially starve the other residents supplies. You'd need a water storage cistern to act as a break tank, then a pump off that

 

[muggles]

Also I can't see any evidence that this is WRAS Approved. If it isn't, it can't legally be connected to a UK mains water supply, so you'll need a cistern and pump to make it comply with regulations

 

[oldbuffer]

And if its the only WC in the property, it can't rely on electricity to function.

 

[Nige F]

Then there are the zones in bathrooms where you can't have a socket / outlet. But I'm sure (in London) plimico plumbers could sort you out

 

[crash87]

Thank you for all your help.

I've narrowed it down to this type of pump:

Expondo shop

Expondo | Get it done

www.expondo.co.uk

Any thoughts on that?

 

[muggles]

As before, you can't just connect that to the incoming mains. You'd need a storage tank to hold the water, then you can connect the suction side of the pump to that tank.

 

[crash87]

This pump has a 19 Litre tank capacity. Regulations aside, would it work ? I obviously only need 15 seconds at a time, so I'm not worried about this impacting any neighbours due to being connected on the mains. Thanks

 

[muggles]

The "tank" is actually an expansion vessel and is after the pump, not before it as would be required. It probably would work although the pressure of your mains may exceed the maximum inlet pressure of the pump, so you equally may come home to a flood one day