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  1. W

    Lack of Gravity fed pressure on non pumped heating circuit

    We have 3 radiators fed by a non pumped gravity fed system linked to a back boiler on an oil fired AGA. The system was fitted a couple of years ago by someone who has now emigrated to NZ. The AGA is in a ground floor Kitchen and the 3 radiators on the first floor The radiators are controlled...
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    Faulty Anti Vac Trap ?

    Have just repaired a leak on a compression 40mm waste elbow(tightened it) which is on a fairly long run of waste pipe (c 18-20m) with minimum fall. Once the leak was fixed, the sink connected would not drain properly. There is an anti-vac trap on the trap - if this is puhed gently with...
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    Pipe Sizing for Thermostatic shower Mixer

    I want to fit a thermostatic Shower valve which requires 22mm /3/4" Hot and Cold Feeds in a bathroom that is piped with 15mm pipe. What will be the result/effect of branching off the 15mm pipe with 22mm pipe to the shower valve or is it acceptable to use a 15mm reducer fitting directly into...
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    3 out of 12 rads not working after re-filling system

    I have fitted a towel rail in place of radiator in bathroom - on re-filling system 3 out of 12 rads won't heat up. I suspect an air lock but all rads are full of water (from vent screw) I have : Bled Rads Bled Pump Closed working rads to divert pressure to non working etc Can't seem...
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    Plumbing in a Thermostatic mixer valve

    I have a bath mixer with shower facility which works off a combi boiler - water gets too hot when someone turns on a cold tap elsewhere in house. I would like to fit a thermostatic mixer valve onto the pipework supplying the shower, can someone explain how these are plumbed in ? They seem to...
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    Changing High Temperature Cut Out - Unvented Cylinder

    The high temperature cut out needs replacing on my Unvented indirect Cylinder - confirmed by heating engineer who didn't have part or time to change it when doing annual service - I have been waiting for him to come back for six weeks but still no date set - I have ordered part myself. Is...
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    Replacing a Ceramic WC Syphon

    Have an old Ideal Standard Low Level WC with a ceramic syphon - the metal rod which lifts the diaphragm has sheared so it won't flush. The cistern outlet for the syphon to the flush pipe is larger than required for modern plastic syphons - does anyone Know of a reliable adaptor/reducer that...
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    Size Of water supply pipes to bath with Combi

    I am currently replacing an old bath room suite - the hot water supply is from a Vaillant Combi ( recently installed ) and hot water supply pipe is 15mm - the existing bath has both hot and cold supplied by 15mm pipe - would the hot water tap/and or cold be better served by 22mm pipe or doesn't...
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    No Conventional Feed and Expansion tank - Can we adapt ?

    I am helping my son renovate his first house. The Central heating boiler is a Baxi Solo (not combi) but the system does not appear to have a traditional Feed and expansion tank. The radiator in the bathroom has a feed into the "flow" pipe from a wall mounted plastic "ornamental tank"(about 3...
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    Shower Waste run

    I would like to fit a shower in a corner of an extended bathroom - the waste would have to go across the joists to connect with basin / bath waste - don't see how I can sensibly/ practically do this with a 40mm waste pipe. If I run waste along joists to external wall and then through/out to main...
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    Disconnecting Indirect Hot Water Cylinder

    I need to disconnect and drain an elevated indirect hot water cylinder as the base on which it is supported is chipboard !! and showing signs of imminent collapse - I plan to replace it with 20mm marine ply. I know how to disconnect hot and cold water supplies and drain cylinder but am unsure...
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