by andysarah »
Mon Oct 15, 2007 9:04 pm
Bob,
thanks for coming back to me, the answers are as follows;
the house is 3-4years old, the cold tank is the normal black plastic 1mx1mx1m. the hot is a insulated indirect copper cylinder, there is only me and the wife and our 3yrold son so the tank is ok at the mom.
all valves are fully open, the hot and cold taps in the bathroom runs full bore! the new pipe work connects; new cold T into the cold supply to the HW cylinder, the new hot T off the top out let, there is only one outlet from the tank. when i run the new sink mono tap from hot to cold there is no difference in the very poor flow, and is much less than any one hot tap in the house. the rest of the house is fine, there is no difference. i can open the bathroom top sink tap to a good flow then open both new shower and new sink on full hot at the trickle and it makes no difference to the bathroom flow, then switch of the bathroom tap and again no difference to the new ensuit flows? when i fitted the bleed valves i could bleed of air then the water would start squirting out.
the new toilet is T off the new cold run down to 15mm copper from the sink, you can flush the loo and it fills normally.
i get the feeling the sink tap is choking the sink flow due to the low head, looking at similar taps they require .2bar, 2m head, i have 1.2m? the pipes going into the mono block are braded pipes crimped onto brass threaded bits, with a hole in then of 5mm, this i feel is the problem.
as for the thermo shower mixer bar, i feel this is also has a higher pressure requirement than is available, it was purchaesed off ebay so i have no pressure spec on it? i have purchased a new shower mixer which is should run on a gravity sytem but it need 0.5bar, 5m head, where can i get that from. i will take it back and get my money back.
what a mess! should never have got involved, no plumber will come near now i have started it, not that they seamed to want to price the work in the first place, sob sob.
i am a structural engineer, if anybody can come and fix my system i will be more than happy to design a loft conversion for etc for them, im in kent!!
