How do I increase water pressure

Joined
9 Sep 2004
Messages
1
Reaction score
0
Country
United Kingdom
I have a private water supply so the water pressure comes from the loft tank. I want to install a dishwasher but the pressure is too low. How can I solve this? Thanks for your help.
 
Sponsored Links
With a cold water storage tank, the only way to increase pressure is to raise the tank. The distance between the tank and outlet is referred to as the 'head'.

You could check to ensure that any gate valves, service valves are fully opened to ensure you are getting the full flow from the tank. Or that check the condition of the pipework is ok? Old plumbing installations can become 'furred up' again reducing the flow from the tank etc.

Hope this helps.

(best posting this sort of question in plumbing in future!) :rolleyes:
 
not sure if this is the same problem.... but read on it does have some bearing...

we went out and brought a powershower and asked a plumber to well errrr plumb it in...

he came back saying there wasn't enough water pressure (or was that storage - canna remember) anyway he suggested putting in an additional cold water tank for the shower to 'pull' from...


anyway to cut a long story short it turned out our low water pressure was due to a stopcock not being turned on full - quite funny really as we have 3 stopcocks on the mains (yes 3!!!) and two were fully on but the oldest was only on a quarter turn - god knows how long it had been like that as it was all gummed up and took a pair of pliers and some swearing to turn it....


so i suppose what i'm saying is check you cocks :oops: :LOL:


ps anybody know if powershowers pull from the mains or from storage tanks? (we have yet to get the plumber back round...)
 
ps anybody know if powershowers pull from the mains or from storage tanks? (we have yet to get the plumber back round...)
Power showers can only be fitted to a cistern.:cool:
Your mains stoptap should not affect pressure from your cistern unless it is refilling too slowly :)
 
Sponsored Links
[ps anybody know if powershowers pull from the mains or from storage tanks? (we have yet to get the plumber back round...)

Power showers can only be fitted to a cistern.:cool:
Your mains stoptap should not affect pressure from your cistern unless it is refilling too slowly :)


cheers for the info. Bahco


- sorry Gerrywell, looks like i've sort of hijacked your thread :oops:
 
Gerrywell (the guy withthe dishwasher!)
OPening valves might help but won't affect the pressure, only the flow.
First call the manufacturer to see if they do a low pressure valve for your machine.
If not you may have to fit a pump. You could either just put a pump on that pipe , or you could fit a "whole house" pump, on both hot and cold, so you'd benefit everywhere, eg a decent shower.
Single pump about £100 or maybe less, Whole house nearer £300.

You may well need a "negative head" pump, to provide a bit of pressure so it can detect the flow into the DW. Otherwise, no pressure so no flow so -nothing!
 
How do I know what the pressure of my mains is?

I too have a power shower, having moved house into one that has it. But the shower drains the cold water tank. The shower blur states that it can use 22 litres a minute, and the plumber and my own measurements of the cold water tank reckon its a 50 gallon (225 litre) tank. (10 minute shower), but with other users (washing machine, etc. etc.) its less.

We have checked all of the pipe for taps and found just the one, which is fully turned on. He recommends installing another inlet into the cold tank
(from the same supply) as this will get double the water into the tank. Plus he would have to install a second overflow pipe. Or install a larger water tank, but as this large size would be a problem would have to install another 50 gallon water tank and connect them in parrallel.

Sounds like alot of work - and he wouldn't even give me a "off the top of head" cost.
 
Rodney
What is it you need from your water supply :confused:
Are you worried your shower will run out if other appliances are used?
If so change your cistern for a larger one or change all your cold plumbing to come directly off the mains :)

Your plumber recommends another inlet to your tank to double the water? :eek: :eek:
 
Your plumber recommends another inlet to your tank to double the water?

You do worry so, Bacho. You need not fear, the plumber is going to install a second overflow too.

;)
 
OK I did not make myself clear!

The 2nd inlet is to increase (double) the rate of flow into the tank. Hence the 2nd overflow pipe is required also.
would this work?

oilman said:
Your plumber recommends another inlet to your
tank to double the water?

You do worry so, Bacho. You need not fear, the plumber is going to install a second overflow too.

;)
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top