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I know what 3 way/diverter/mid-position valves are with the motorised heads on but I am wondering about the diverter valves that contain a diaphragm and what the obvious differences are as to their use? (apart from looks) I have read about how they work and understand this but what, when, where...

So about 0.000001 bar. I can pi55 better than that. :wink: if the pipework were adjusted so the tmv was near the sink this would give approx 2 meters, would this provide a better head so to speak as already mentioned the cold is built into the heater so surely this cant be adjusted?

It doesn't matter where the TMV is in relation to the heater, it's the height of the tank filling the heater that determines the head of pressure. ah right..the unit has the cold feed tank build into the top of it.

guys, looking round the net I have thought about something and would like a genius to let me know. The TMV is directly under the water heater so practically no head :lol: the heater outlet has 90degree bend then about 4 inches of 22mm then straight into TMV. This is then met with the...

Plumbing gods, Today I replaced a faulty PRV with a one from screwfix it is this one http://www.screwfix.com/p/prv-with-gauge-15-x-22mm/41943 went on a doddle however the pressure gauge is not reading? There is a TMV fitted after it and I noticed that after you draw off some water...

get something like this http://uk.rs-online.com/web/p/cable-metal-stud-detectors/0418369/ you can get cheaper ones but i found them to be ineffective. The one above i believe to be very good

hey, Yes get yourself a multimeter but dont get the cheapy things from wilko's or asda etc try get the best you can afford from somewhere reputable. And in the future it will always be handy to have hmm at £57 for an element you could be looking at a whole new shower nearly for that price...

hey, you could check the resistance of the element if you can get into the shower and onto the terminals with a meter (power off obviously) a decent 8.5kW element should give around 6.22/6.77ohms if im not mistaken depending on your voltage might narrow it down a bit for you

sorry to jump in here..... how would you get round if somebody wanted outside lights all from same switch but did not want any external cabling/conduit etc inbetween fittings. As you cant run a cable down an internal and drill through as it aint within zones? cheers

http://www.cityandguilds.com/48210.html?search_term=2356 on here it says last registration is july 2012?

Will check this out tomorrow morning when I think it will be it's coldest. I will check the temps of the pipes also. If the coil is heavily scaled I'm assuming this would affect the heat transfer. I will try take some photos of everything also as they say a pic is worth a 1000 words :)

There is a pump under the floor boards downstairs which I believe is for the upstairs rads as once this packed in and rads did not work. Would there be another pump anywhere that may assist in the circulation?

cant see anything like that on it.

hey guys, it is a "Elson Double Fed indirect hot water tank" sticker on the side could only do magnet trick on about 3 foot of pipe work as it is unaccessible throughout the rest. Nothing happened when I tried. however when set to HW only both the flow and return pipes are untouchable...

genius!! I shall take all on board and get working it all out. Might have trouble with the magnet trick though as most the pipework is concealed :( but will see what happens

OK will check small tank. This small tank is attached to the big tank that holds the hot water if this makes any difference? This also may sound daft but if it relies on gravity then how does the hot water get up into the loft?

hot water tank is in the loft and is from what I can tell heated by the boiler circuit, there is no heating element or thermostat on this tank. I assume this heating is pumped up to the tank to warm it up but the produced hot water is gravity down to the bathroom which is on the ground floor...

guys, anybody know how long it would take a back boiler to heat enough water for a hot bath? I know there maybe many variables but I'm looking at 5 hours here and it not even hot hot if you get my drift :? would having the heating on make a major difference also? as always, many thanks

guys, im not very experienced with this but have done it a couple of times. today though i was using yorkshire fittings and when heating i could see the ring of solder coming through but I was trying to add just a little extra from my reel but the reel would not melt? Little confused here as...

ok thanks again for that when i check the pipe is the brand easy to identify. Im assuming there will be many different brands therefore many different inserts and possibly difficult to find exact match I hate plastic already :(