Can a Fluidmaster 400uk bottom valve fit into a old style ball cock valve handle operated cistern
- Thread starter PHIL269
- Start date
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Probably. You need to look up the measurements of the Fluidmaster on their website, and work out whether it can be physically fitted without interfering with the syphon in the centre of the cistern.
If it will fit, then:
1. Turn off cold water feed to cistern, flush cistern, remove remaining water in cistern (wet vacuum cleaner or a sponge).
2. Disconnect cold inlet to cistern at base of shank of old valve.
3. Remove nut (usually plastic) holding old fill valve in place.
4. Remove old fill valve and float. Clean inside and outside of cistern where Fluidmaster will sit.
5. Adjust Fluidmaster height to height of old valve.
6. Install Fluidmaster. Black cone shaped washer inside cistern, cone down.
7. Fit nut to shank under cistern and tighten, making sure float valve is free to rise and fall.
8. New fibre washer in tap connector on inlet pipe (1/2"). Reconnect and tighten inlet connection. Tight but not over-tight.
9. If 8 and 9 difficult because little play, slacken nut on shank until enough play to get connector on, then hand tighten each bit by bit, final tighten back nut, final tighten connector.
10. Restore water connection. Go slowly checking for leaks.
11. When no leaks, adjust fill height to line on inside of cistern
If it will fit, then:
1. Turn off cold water feed to cistern, flush cistern, remove remaining water in cistern (wet vacuum cleaner or a sponge).
2. Disconnect cold inlet to cistern at base of shank of old valve.
3. Remove nut (usually plastic) holding old fill valve in place.
4. Remove old fill valve and float. Clean inside and outside of cistern where Fluidmaster will sit.
5. Adjust Fluidmaster height to height of old valve.
6. Install Fluidmaster. Black cone shaped washer inside cistern, cone down.
7. Fit nut to shank under cistern and tighten, making sure float valve is free to rise and fall.
8. New fibre washer in tap connector on inlet pipe (1/2"). Reconnect and tighten inlet connection. Tight but not over-tight.
9. If 8 and 9 difficult because little play, slacken nut on shank until enough play to get connector on, then hand tighten each bit by bit, final tighten back nut, final tighten connector.
10. Restore water connection. Go slowly checking for leaks.
11. When no leaks, adjust fill height to line on inside of cistern
Assuming your cistern is a bottom fill inlet (the water pipe enters at the bottom and not side) then it should fit (measure what height the cistern has). But it all depends how much room you have inside the cistern and if the siphon might get in the way.
Well oldbuffer beat me to it and provided a more in-depth answer
Well oldbuffer beat me to it and provided a more in-depth answer
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Hook out the old siphon and install a flapper valve should give you more room, and no worries about the diaphragm disintegrating in a few weeks time.
Try one of these http://www.screwfix.com/p/arctic-products-flexible-tap-connector-washers-10-pack/2035j
May be the internal seal washer has been damaged while installed on the old inlet valve. Some valves have a rather sharp edge, which may seal but will damage the rubber washer in the flexi.
If that doesn't work, replace flexi.
Don't use sealant on the thread. Sealant is only used on threads where they are taper threads, which these aren't.
May be the internal seal washer has been damaged while installed on the old inlet valve. Some valves have a rather sharp edge, which may seal but will damage the rubber washer in the flexi.
If that doesn't work, replace flexi.
Don't use sealant on the thread. Sealant is only used on threads where they are taper threads, which these aren't.
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