Help : I have a set of bath taps which has a shower connection pull up plunger thing to change between bath and shower. The pressure on the taps is ok but when I pull the plunger , the taps stop but the water pressure decreases so the shower head just trickles ( well maybe a little more than a trickle ). I have changed the shower head and lead that connects it but still low pressure...Any ideas or are they not very good anyway? The feeders also connect to another shower unit that is fine so i assume it is this lever plunger thingy...Any help welcome...Cheers