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by marrtin
Sun Jan 20, 2008 9:40 pm
Forum: Plumbing Forum
Topic: Fitting a shower pump
Replies: 3
Views: 3412

Most dedicated shower pumps have integral switches which sense flow of water and so switch the pump on or off accordingly. Considerations for fitting are sufficient cold water storage in the header tank, and ample store of hot water in the cylinder. These showers are thirsty beasts and can empty a h...
by marrtin
Sun Jan 20, 2008 9:33 pm
Forum: Plumbing Forum
Topic: Triton combi shower mixer
Replies: 4
Views: 3833

A quick guess is you have put the control knob back on in the wrong position.
by marrtin
Sun Jan 20, 2008 9:31 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: adding a hot water cylinder
Replies: 3
Views: 3506

Most domestic heating systems are based around a "Y" plan where heating and hot water are controlled by a three port valve. The valve directs the heated water to the radiators, the cylinder or both and of course the wiring is designed to control this. In an "S" plan, each zone ha...
by marrtin
Sun Jan 20, 2008 9:21 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Header tank
Replies: 2
Views: 3067

This topic has been covered so many times in recent posts. See m m m Basically this is caused by a poorly designed system which can result in either air being drawn into the system or hot water expelled out of the pipe. your fault which is very dangerous, can be rectified in one of three possible wa...
by marrtin
Sun Jan 20, 2008 12:42 am
Forum: Tiles and Tiling Forum
Topic: tiling bathroom
Replies: 6
Views: 5768

Oh dear.

Bolster chisel and elbow grease is all that's on offer I am afraid. Or better still get those who walked on it!!!!
by marrtin
Sun Jan 20, 2008 12:40 am
Forum: Tiles and Tiling Forum
Topic: Taking tiles of a stud wall.
Replies: 1
Views: 3834

You may be lucky and the tiles will come off without damaging the wall too much. If it is, how it is repaired depends on how the wall is constructed. If the wall is a proper stud wall then the new plasterboard can be fitted over the original studding. If it's the "eggbox" type, then it has...
by marrtin
Sun Jan 20, 2008 12:27 am
Forum: Plumbing Forum
Topic: Shower Pump
Replies: 9
Views: 4073

Kipper, your best bet is to probably change the combination cylinder for a standard one and feed it from the header tank in the loft.

This would give you a larger store of hot water as well as increase the pressure. You could then fit a pump to turn a mixer shower into a power shower.
by marrtin
Sun Jan 20, 2008 12:21 am
Forum: Plumbing Forum
Topic: Adding a new radiator.
Replies: 1
Views: 3076

Yes. Just tee into each of the two pipes going to the radiator upstairs and using 15mm bring the pipes to the new radiator. Not which is the flow and return, and fit the new valves accordingly.
by marrtin
Sun Jan 20, 2008 12:15 am
Forum: Plumbing Forum
Topic: hep20 or copper?
Replies: 18
Views: 35292

I think in most cases, copper has to will continue to be used by professionals in preference to Hep2o. However, I don't exclude Hep2o on the grounds it is for amateur use only, that's ridiculous. The whole point is, copper is best for some types of installation, and Hep2o is better for others. You w...
by marrtin
Sat Jan 19, 2008 11:54 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: 8mm micropipe,good or bad?
Replies: 9
Views: 16768

Frankly, I hate microbore and 8mm is the worst of all. I suppose a new boiler would work without any changes, but that would still leave the problems of a system that cannot be balanced properly. It may be that the increased output from a new boiler cannot be dissipated properly which may reduce eff...
by marrtin
Sat Jan 19, 2008 11:48 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: adding a hot water cylinder
Replies: 3
Views: 3506

In principle a second cylinder could be added if the system was based on an "S" plan. You may however find the cost of heating the second store of hot water increases the overall running costs by a significant degree.
by marrtin
Sat Jan 19, 2008 11:44 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: air in radiators
Replies: 3
Views: 3370

Try turning the speed setting on the pump down as the pressure may be drawing air into the system.
by marrtin
Fri Jan 18, 2008 6:35 pm
Forum: Plumbing Forum
Topic: Drain cock and corrosion protection
Replies: 5
Views: 3627

Yes. You've got it.
by marrtin
Fri Jan 18, 2008 4:47 pm
Forum: Plumbing Forum
Topic: Loud banging from hot water water pipe
Replies: 3
Views: 6180

If we assume the system is full of water with no airlocks, I can think of two other problems which may cause the boiling. Firstly as the system is gravity fed, it is possible sludge has built up somewhere that has stopped the flow of water. Secondly, the boiler itself may be faulty which means the g...
by marrtin
Fri Jan 18, 2008 4:32 pm
Forum: Plumbing Forum
Topic: question regarding length of immersion heater
Replies: 5
Views: 5589

Immersions come in two sizes 11" or 21" so by the length of the thermostat, I would suggest you have the 11" version which will only heat a bowl full of water. Assuming the electrical suplly will cope with the 3kw type replace the 11" with a 21". But hang on a moment - how e...
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