no pressure to shower

[kimbo]

Firstly the water supply should be roughly of equal pressure to work properly, secondly if they are both gravity the higher the shower head the less pressure, if there are check valves on the pipework and the header tank is directly above the shower head there is probably not enough head to open them. If you have pressurised hot water and a gravity cold you would need a check valve on the pipes to stop the back feed into the cold.

 

[Bartdude]

my shower is this one


THERMOSTATIC ROUND CHROME SHOWER MIXER TAP VALVE SS021 on eBay (end time 14-Feb-11 13:17:23 GMT)


This is what is says it's compatible with.
These taps & showers will work on the following systems
·Combination boiler systems
·Pumped hot water systems
·Un-vented hot water systems
·Standard pressurised hot water cylinder type systems

According to those instructions this shower isn't suitable for a low pressure water supply. A low pressure mixer may work but it might not be that powerful.

This may explain it.

Shower pump selection guide

 

[tamz]

It definitely wont work as it is as you don't have the head of water. The tank would need to be 5 meters above the shower head.
It told you here


If you want to keep it you will need to pump it.

 

[netdef]

It definitely wont work as it is as you don't have the head of water. The tank would need to be 5 meters above the shower head.
It told you here
View attachment 2104

If you want to keep it you will need to pump it.

didn't know nothing about bar pressure, it seemed very low so thought it would work, only now reading others posts that people saying 0.1bar per 1m

looks like a pump it is then.

 

[netdef]

According to those instructions this shower isn't suitable for a low pressure water supply. A low pressure mixer may work but it might not be that powerful.

This may explain it.

Shower pump selection guide

thanks for the guide, wish i had seen this beforehand.. to late now I will have to get a pump... the shower is staying

 

[stevetheplumber]

noy reading the instructions is a man thing weve all done it

 

[philtheflush]

the first post on this thread didnt mention him having pump that would be the first piece of advice (ie does it have a pump if not get one)

 

[plumbdoctor]

sounds like you have negative head my friend !

 

[netdef]

thought i would come back here and reply, fitted a salamander pump with lots of altering pipe work once i figured out. my issue now is that it is noisy and if I leave it on then the pump seems to come on every 3 hours (would this be a leak of some sort)

not to mention all my tiles are coming up from the floor ... time for and expert !

 

[Billy Bob Bob]

thought i would come back here and reply, fitted a salamander pump with lots of altering pipe work once i figured out. my issue now is that it is noisy and if I leave it on then the pump seems to come on every 3 hours (would this be a leak of some sort)

not to mention all my tiles are coming up from the floor ... time for and expert !

think you have answered your own question my friend,hope you get it sorted