cold water supply to bathroom and toilet

[4me1956]

Hi all,

The water flow to the taps in my bathroom is too low. Water is supplied from the tank in the loft. To improve the flow in the bathroom, I intend to connect the pipe leading to the bathroom directly to the pipe (main) that supply the Tank in the loft, but also keeping the supply from the tank connected so that the bathroom taps will be supplied directly and indirectly too.I am hoping this will improve the flow, and at the same time still supplying water if there is water stoppage from the main. Will I encounter any problem? Thank you for your advice.:book:

 

[Dsp]

As long as the pipes and couplings taps etc are up to the extra pressure you should be ok

 

[Chalked]

You will back feed your tank.
Mains only or tank fed only I'm afraid.

 

[Ch4 plumbing]

Do you mean connect the water main to the pipe that feeds the tap from the tank?

1 - How will you stop the water filling the tank?

2 - It contravenes water regs!

 

[wiggers]

Do you have any mixers on your bath or basin, if so your gonna need a couple of check valves
As the mains pressure will force the hot back into your CWSC and will start overflowing.

 

[AWheating]

Sounds like a disaster waiting to happen. Get a professional in.

 

[Dsp]

After getting some sleep and re reading your post it's not as easy as you may belive it's 1 or the other and check valves may be required get a professional in

 

[4me1956]

thank you. I intend to put a tap so that there is no back flow.. and only use the tank water if there is ever a water stoppage. However .. I think it would be best to choose the main ... after making sure that the taps can take the pressure. Thank you again for your kind advice..

 

[Stigster]

If you've got decent incoming mains pressure/flow rates then you could consider going unvented and get rid of the cistern in the loft altogether.

 

[Sparkgap]

:speechless: forget putting in a tap or anything else like connecting the mains to the tank downpipe. Major problems just waiting to happen! What's the size of pipe from the tank down to the bath? In a previous house I had a tank in the loft with a 35mm cold feed to the cylinder and another one for the 2 baths. Each bath had 22mm connections and there was a shower over each. Never had any issues with water flow. Okay it's not a power shower but if you want high pressure then you need to go for a booster pump.
I suggest checking the pipe sizes first and upgrading them if necessary (could also check the taps aren't horrible small bore things as well) before thinking about any botch job onto the mains!

 

[plumben]

thank you. I intend to put a tap so that there is no back flow.. and only use the tank water if there is ever a water stoppage. However .. I think it would be best to choose the main ... after making sure that the taps can take the pressure. Thank you again for your kind advice..

If you seal the tank off and keep the water in it unused it will become stagnant...

 

[4me1956]

Thank you. This is what I have decided to do. But what about the supply to the cylinder ( for hot water), would there be any problem connecting that to the main?

 

[Ch4 plumbing]

Yes lots of problems, your best off getting a professional involved! It's not as simple as just doing things.

 

[lucas121]

Oh dear, I hate to be someone who knocks you down and tells you to get a professional in. But you are way out of your depth. Your ideas are going to cause all sorts of problems and break all sorts of regs!

 

[4me1956]

It was not exactly brain surgery.. working fine .. better pressure. Happy with the work. Thanks to those who did NOT advise '' get a professional!!'