Airlock-HOW TO AVOID

[tiggs1968]

I AM ABOUT TO FIT A NEW BATH. I HAVE A CWT IN ROOFSPACE AND A HOT CYLINDER IN CUPBOARD BELOW. THERE ARE 2 SUPPLIES FROM CWT TO COLD TAPS AND HOT CYLINDER. I CAN CLOSE THESE SUPPLIES VIA VALVES, DRAIN HOT CYLINDER AND THEN FIT NEW BATH AND TAPS.

IS THERE A SPECIFIC WAY TO REFILL HOT WATER CYLINDER TO AVOID AIRLOCKS? FOR EXAMPLE LEAVE TAPS PARTIALLY OPEN WHEN
RE-FILLNG OR KEEP TAPS CLOSED? ADVICE WOULD BE APPRECIATED.

 

[lightning]

Turn off gate valves in airing cupboard {cold feed to cylinder}and cswc gate valve .no need to drain or worry about air locks.
just run taps till water stops.

 

[tiggs1968]

THANKS FOR REPLY
THERE ARE NO GATE VALVES ON PIPES IN AIRING CUPBOARD. THE ONLY VALVE IS AT THE OUTLET FROM THE CWT. I WILL CLOSE THIS AND DRAIN DOWN THE HOT SUPPLY BY TURNING ON TAPS UPSTAIRS AND DOWN.

 

[JonB]

Also turn OFF your Caps Lock