Hard to balance bath tap/shower mixer

[chawkey]

Hi all, I have a bath tap/shower mixer that is hard to balance because hot is of gravity vented cylinder and cold of mains. The cylinder is 2 ft from taps and the house has an old tank that is hard to get at so very awkward to put a dedicated cold feed in for bath, it only has one outlet which feeds the cylinder.

My question is can I tee of the cold feed to the cylinder that already has a tee with a ballafix on instead of a drain off tap. It wwould be simple to do but would I be breaking any regulations or cold it draw hot water fom cylinder?

Cheers all

 

[mountainman]

Not a brilliant idea but should get you out of trouble at a reasonable cost.

Your biggest problem is that Ballofix valves severely restrict flow so you'd be better off changing it to either a gate valve or full flow lever valve.

 

[Phil]

Not a good idea to do that, its a bodge and will reduce flow to both hot and cold when running a bath.

Either run that 22mm cold feed from the loft or fit a pressure equalising valve on the hot and cold feeding bath taps, this will knock the cold down to the same pressure as hot so they're balanced.

 

[glenno1]

Agree with phil and theyre about £45 from plumbase

 

[kay-jay]

Trouble with pressure equaling valves is they balance to the lowest pressure of the two feeds. If header tank has not much head, give some consideration to raising the cwsc

Sent from my GT-I9100 using Tapatalk 2

 

[frankjames]

Not a brilliant idea but should get you out of trouble at a reasonable cost.

Your biggest problem is that Ballofix valves severely restrict flow so you'd be better off changing it to either a gate valve or full flow lever valve.

Sounds like a decent workaround to me ! all them pressure equalising valves are a pain in the arse.
Go with the gate valve.No one cares if it takes slightly longer to run a bath.
Just my opinion like,