Please help me

[flipfloppi]

My water supply is totally unreliable (morocco), I only get three hours a day of running water from the mains, my only solution is to damp all the water in a 900 litres water tank (with the suitable byelaw thingy), and then feed everything from it

If I install a water tank at about 0.60m from floor level (one floor apartment), and a 2.0 bars water pump underneath the bottom of my tank, all my inlets are higher than the bottom of the water tank and the water pump.

Here is what I am looking to do:

•I am looking to have one pipe to feed only 1 gas water heater (about 1.3 meters higher than the pump) to feed 2 sinks, and 1 bath/shower
•The other dedicated pipe will feed 1 kitchen sink, 1 washing/M, 1 dishwasher, 1 bath sink, 1 bath/shower tap

My questions are:

1.Is there a pump that can take two inlets and have two outlets, and only pumps the outlet that is needed? (instead of having two pumps)

2.Will this still pump the water to my higher outlet (between 1.0m and 1.6m for the shower)?

3.Does a water pump work automatically each time an outlet is opened? Even though all outlets will be higher than the pump

4.What is the minimum distance (horizontal and vertical) from tank outlet to the water pump (in general)?

5.What is the minimum distance (horizontal and vertical) from the outlet of the pump to the next 90 degree bend?

6.Is there a restriction on the number of 90 degrees bends that can exist on one system?

7.Is there a restriction on the horizontal distance from the pump to the outlet furthest away? (in my case it’s the shower and it’s about 8 meters “horizontally” away from the pump)

8.Do water pumps need their own circuit? Or can I just use an existing cable going to a power point or a light?

9.Super-silent pumps, do they exist? Or what is the best way to reduce the noise of a running pump?

10.I am looking for a durable and super-silent pump if possible; can you recommend any good makes

 

[Dan Robinson]

You want a Negative head twin Stuart Turner Monsoon - choose your own pressure.

Here

 

[chrishutt]

You want a Negative head twin Stuart Turner Monsoon - choose your own pressure.

Are you sure Dan? Sounds to me like he needs just one pump (not twin) to boost the outlet from the storage tank.

 

[flipfloppi]

thanks Dan_Robinson

very helpful again

cheers

 

[flipfloppi]

You want a Negative head twin Stuart Turner Monsoon - choose your own pressure.

Are you sure Dan? Sounds to me like he needs just one pump (not twin) to boost the outlet from the storage tank.

does this mean i can use two pumps ( i am plannin' two outlets)?

 

[chrishutt]

You only need one pump! You pump the water from the tank and then split the supply pipe as often as you like to serve the different outlets. The pump needs to have a flow or pressure switch and probably an expansion tank to reduce frequency of pumping operations.

 

[flipfloppi]

You only need one pump! You pump the water from the tank and then split the supply pipe as often as you like to serve the different outlets. The pump needs to have a flow or pressure switch and probably an expansion tank to reduce frequency of pumping operations.

chrishutt,

this is good news (only one pump needed), what minimum pressure do you recommend according to my situation? and any idea on how much for cost?

cheers

 

[Dan Robinson]

A twin pump is a single unit wioth four pipes - two in - two outlets.

Have I misread something here?

If so then sorry.

 

[chrishutt]

This is the kind of thing the OP needs, minus the feed tank.
http://www.grundfos.co.uk/web/homeUK.nsf/Webopslag/DMAR-6RZKWV

 

[Dan Robinson]

Interesting product I saw it a little while ago, I am waiting for Grundfos to send me a bit more info on it...

It's just a break tank system with a brain though; for £900 it needs to do something pretty neat that a 50 gallon tnak and Stuart Turner wouldn't do....