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  1. D

    Ideal Mexico with no F&E Tank?

    Hi, i've done a system conversion this weekend. Ideal Mexico out and vaillant ecotec combi in. Everything was stripped out but i couldn't find a F&E tank in the loft. Just a CWSS. I then looked for a filling loop and expansion vessel as i thought somebody may have converted it a few years back...
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    Noisy Ceramic Taps under high pressure.

    Hi all, i have an unvented cylinder with balanced cold feeds. The cloakroom basin monoblock tap is under 3bar of balanced pressure. As the basin is very small ive had to turn down the isolation valves to stop water flooding. Obviously this has made the taps very loud at night. Is there a way of...
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    Ballancing an S Plus Plan heating system

    Hi all, i have to ballance a system which has half underfloor and half radiators. the underfloor is fine, however the radiators need ballancing. would you suggest having the underfloor switched on or off to ballance the rads correctly? each zone has a seperate 2 port. there will also be an 3rd...
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    Vaillant and Honeywell DT99e help

    Can't seem to get the stat to control the Vaillant pro24. Have I got this right? The boiler just runs on heating and won't switch off. I then removed the 24v link and it had the opposite effect. Wouldn't switch back on. It's a Honeywell DT90e by the way. I have a Vaillant mechanical 150 time...
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    noisy non return valve.

    I have a unvented system and have run a secondary return on the hot water due to the size of the property. I have a non return valve directly after the bronze pump that rattles and is causing a nuisance. Is there a diff type of double check valve i can use to stop this rattling?
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    Vaillant F84

    Fault: Flow/return temperature sensor tempera-ture difference implausible Vaillant Pro24. The boiler runs in heating and DHW mode for about 60 seconds then switches off. is this something easy to fix? Never changed these before. Are they clip on or wet pocket? any help would be much...
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    Bar Mixer shower cartridge.

    I have a standard cheapy bar mixer shower that isn't getting hot and the customer wants to keep the shower. (It's got a diverter and a big shower rose head) Will a standard bar mixer cartridge do the job?? Ie from another bar mixer I have as spare in the garage?? Are they all 1/2" ?
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    Gas Fire ID please.

    Can anyone help with finding a manual on this fire please. I was going to service it as a portfolio job but my mentor won't do it until I can find a manual for it. Can't find it anywhere online. Thanks.
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    3 port valve change 4 to 5 wire.

    I need to change a 3 port valve tomorrow as the valve is screwed and leaking badly. It's a 4 wire potterton but I want to replace with a 5 wire honeywell. Can anyone help with the wiring? Where does the extra wire go????
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    Unvented secondary return question.

    Can somebody clear up an ongoing argument for me. Would changing the pump valves on a secondary return hot water pump be down to a G3 unvented ticket or not? It's a topic that often gets heated in our company between plumbers and gas engineers. We didn't really touch on this on the unvented...
  11. D

    Worst isolation valve ever!

    Just saying.
  12. D

    Filling loop with gauge

    Can't seem to fine any local suppliers that stock this type of filling loop. I want to fit a remote one in my airing cupboard as the boiler is in the loft. Anyone know of somewhere that may stock them....??
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    Remote Pressure Relief Valves

    Has anybody fitted one of these in the past? Im just curious on how they work. Normally used when prv p discharge pipe cannot take a easy downward fall outside from the boiler. Does this just tee into the heating circuit at a more convenient place? Do you need access to it? i.e it cannot be...
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    Secondary return advice

    A family friend has asked me if its worth installing a secondary return on their megaflo. The bathroom is quite far from the cylinder (in the garage) and takes 20/30 seconds for the hot to reach it. His only concern was the cost in electric to run the pump constantly? Is there a way of...
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    Creaking heating pipes.

    Been called to a job this week and the customer wants all heating pipes re clipped as they creak every morning when the heating kicks in. At the moment they are clipped using the nail type clips down to the joists upstairs. What's the best way to resolve this? The pipes are not touching.
  16. D

    Auto air vent

    My system boiler is above my unvented cylinder so would I need a Auto Air Vent just above the primary flow to the cylinder? Iv been to 2 call outs this week with AAV leaking. My cylinders in the loft so would sooner not. Thanks.
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    5" flue, what core size?

    I have to fit a 5"horizontal vaillant flue today and wondered what size core bit to use. I normally use a 127mm for a 4" flue to give me the fall back to the boiler. But a 127mm might be a little tight. Any thoughts?
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    Minimum Water Pressure / Flow Rate

    Iv been called back to the same property several times in the last 6 for the same problem. The tenant is complaining her water pressure is very poor. So this time i decided to do a proper test and found a Pressure of just under 2bar and a flow rate on the kitchen cold tap of 15Litres per minute...
  19. D

    Megaflo fault.

    This Tundish is dripping from the Pressure relief valve on the megaflo. Should I just replace the PRV or the reducing valve as well??
  20. D

    Digital vessel Gauges

    Can anyone recommend a decent digital expansion vessel gauge? Cant seem to find one anywhere. Iv been using my bike pump this week and its not the most accurate. Thanks
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