Isolating Taps ETC

[Foston]

I am seeking to identify how I would turn off the water supply in the event of a leak or the need to change a tap washer/cartridge. My system is an open vented hot water system with indirect heating. If I may identify one part of the system.
A bathroom is fed from a Stuart & Turner Monsoon 3.0 bar pump.One of the inlet pipes to the pump has a Gate valve labelled "Cold to main bathroom". The hot water cylinder feeding this
pump has a gate valve labelled " cold feed to HW cylinder" The cold water expansion tank has a gate valve labelled "ball valve isolator". The mains cold water supply has a working stopcock.

The bathroom has a basin, toilet, bath and bidet.[It also has a shower but this is fed off a separate Monsoon pump].I can gain access to the hot and cold basin pipes via individual miniature valves. However, the pipework for the bath, toilet, and bidet are hidden with access only by removing tiled panels which I am anxious to avoid.

My questions are. If I need to isolate the water supply to the units, other than the basin, can I achieve this via any/all of the isolation valves mentioned above? If not what action would I need to take? If I have to drain this part of the system would this necessitate the need to re-balance the system?
Any help would be appreciated.

 

[chris watkins]

Yes all fitting can be isolated via those valves.
Easy one first -

"The mains cold water supply has a working stopcock"- All water in the property can be isolated with this one but storage tanks (cisterns) & hot water cylinder would have to be drained.

All hot water fittings are isolated by turning off the one labelled "cold feed to HW cylinder"

"Cold to main bathroom" - as name suggests this should do just the cold supplies to the bathroom but I would check as they could have run a separate supply to the toilet so that the pump doesn't go off every time the it is flushed (night times) easy to find out just flush WC. & see if pump turns on.

[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif]"ball valve isolator" this could just isolate the heating system water (if it just feeds the ballave in the Feed & Expansion tank Small cistern in loft or it could also feed the ball valve in the main water storage tank as well.
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None of the systems should have any problems when turned back on.

 

[Unregistered]

Dear Mr Watkins.

Thank you very much for your prompt reply. Much appreciated.

 

[chris watkins]

No problem, we are here to please.

Why not register next time for any further help.

 

[Phil]

With all those gate valves you don't really have any useable shut off valves, at best they will reduce the flow to a dribble but not fully.
Lever valves are better.

 

[chris watkins]

With all those gate valves you don't really have any useable shut off valves, at best they will reduce the flow to a dribble but not fully.
Lever valves are better.

I thinks they are all Hattersley Green heads Phil so he won't have any problems.

 

[jtsplumbing]

I'm with Phil on this get rid of gate valves & replace with full bore leaver valves

 

[stevetheplumber]

if they are4 hattersly valves they will outlast any lever valve

 

[spanner]

I'm with Phil on this one.

Or alternatively if you see any of these. Isolation valve. Give a 1/4 turn (with a flat screwdriver)..and this should turn your water OFF @ only that application, and assist you in completing your task.
And afterwards...

Don't forget...to
Give another 1/4turn ..

To turn the water on again..

 

[rocketmanbkk]

No problem, we are here to please.

Why not register next time for any further help.

Mr Watkins!!! You're now like a headmaster!!

 

[chris watkins]

Mr Watkins!!! You're now like a headmaster!!

What do you mean "now" !!