inefficient bathroom tap

the hot water tap in my bathroom has to be turned for ages before any water comes out. can you tell me how to rectify this please.
Thanks

Renew washer, or fit a new tap valve, or change the tap completely

diytotallyuseless said:

the hot water tap in my bathroom has to be turned for ages before any water comes out. can you tell me how to rectify this please.
Thanks

Click to expand...

i had this and got rid of it by back flushing the hot supply...it had air locks...i put a hose from the bath cold tap onto the hot tap...and opened the hot tap and slowly the cold...
it occurred several times but i could never find out the cause..
you can of course dismantle the tap and see if the washer has collapsed or something is blocking the flow...
do you have isolation valves under the sink.
ps
check the gravity supply tank in the loft...it may not be filling due to a blocked or faulty ballcock...think that was my original problem as well.

.......flushing the hot supply...it had air locks...

Click to expand...

Unless the pipe rises above the header tank this is unlikely. It's much more likely to be debris in the pipes somewhere which gets shifted by back flushing.

had a similar problem with cylinder full of scale over time it blocked the cold feed in