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hollisp
ok,
the small 3 storey house is supplied water, pumped from a private source, by a communal pump. The house sits right next to the pump house, the pump is level with the house ground floor. The communal pump sometimes sticks and at busy times for the complex, pressure is often too low ( I assume from draw of other houses) to get water to the top floor.
The house has a washing a machine basement level, a dishwasher and mixer tap ground floor and a shower, mixer tap and wc top floor. water enters at ground level.
Hot water is supplied by a 65 litre electric heater in the basement.
What I want to acheive is a regular supply of water at sufficient pressures so the mixer shower works. I can't use an accumulator (as I can't get one there) .I reckoned therefore on a cold water ballcock operated tank on the roof, pumped around the house by a twin pump.
I thought that if I teed this at a point before the water entered the house then the water would run around the house from the main communal pump when it was working and its pressure was good, but if the main pump dropped pressure or stopped, then the tank flow would push water into the house (as its pressure would be greater (would it ?)and my pump would kick in. I am thinking a negative head pump as google tells me that this kicks in on a pressure low (?)
Problem is, I don't actually know what I am talking about (I am not a plumber) and all this is just my guesswork from google searches. I might be well off the mark.
Please, can anyone who does know what they are talking about, put me straight?
Cheers in advance.
the small 3 storey house is supplied water, pumped from a private source, by a communal pump. The house sits right next to the pump house, the pump is level with the house ground floor. The communal pump sometimes sticks and at busy times for the complex, pressure is often too low ( I assume from draw of other houses) to get water to the top floor.
The house has a washing a machine basement level, a dishwasher and mixer tap ground floor and a shower, mixer tap and wc top floor. water enters at ground level.
Hot water is supplied by a 65 litre electric heater in the basement.
What I want to acheive is a regular supply of water at sufficient pressures so the mixer shower works. I can't use an accumulator (as I can't get one there) .I reckoned therefore on a cold water ballcock operated tank on the roof, pumped around the house by a twin pump.
I thought that if I teed this at a point before the water entered the house then the water would run around the house from the main communal pump when it was working and its pressure was good, but if the main pump dropped pressure or stopped, then the tank flow would push water into the house (as its pressure would be greater (would it ?)and my pump would kick in. I am thinking a negative head pump as google tells me that this kicks in on a pressure low (?)
Problem is, I don't actually know what I am talking about (I am not a plumber) and all this is just my guesswork from google searches. I might be well off the mark.
Please, can anyone who does know what they are talking about, put me straight?
Cheers in advance.
