Hi just had the whole house re-piped.Had a shower in bathroom but this time fitted new bath as well.We have baxi boiler 6yrs old.Now the hot warter only trickles through the sink and bath.downstairs toilet basin where stopcock is, hotwarter gushes out.Kitchen tap ok but not brilliant.before pipes were fitted hot warter was ok.safe guard plumber who did job is baffled. Hot warter was flushed out for several hours so no blockage.Please help.