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    Pressure or flow rate reduction?

    Hopefully this is a daft enough question to get a simple reply. I have fairly high mains pressure which is good for the shower, but means that the cold water tank in the loft fills fast and quite loudly even with a quiet Fluidmaster fill valve. I would therefore like to slow the fill speed down...
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    Single overflow from cold water storage and CH header?

    That's what I was hoping - but I was trying to work out if there was a risk of central heating water contaminating the cold water storage tank (?)
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    Single overflow from cold water storage and CH header?

    I realise this may be a chronically stupid question but I'm going to risk asking it anyway. I had my flaky facias & soffits replaced today. At the front of the property the chaps found that the PVC overflow pipe sticking out of the facia board was freely flapping and apparently unconnected at...
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    Heatmiser PRT not working

    Erm, okay....but I don't recall seeing any mention of a battery in the installation manual for the RTS8! As far as I am (was?) concerned it was a 230v powered thermostat just like the awful old thing it replaced. However, if, when the boiler was installed a few years back and the kitchen...
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    Heatmiser PRT not working

    I recently purchased a Heatmiser PRT thermostat to replace a 20-odd year old mechanical room stat (4 wires: earth, neutral, live, call) at my sister's place. I followed the instructions to the letter (and checked this forum!), but with the earth wire isolated in a terminal block and live, 'call'...
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    Hot Water problem with Honeywell Smartfit 'S' system

    I posted on this forum a while ago asking for advice on a noisy central heating system. Last Friday a plumber came round to do some remedial work to the pipework in the airing cupboard: namely getting rid of all the Tees (replacing with gently curved pipe), relocating the pump to the vertical...
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    Whistling radiator bleed screw!

    Nope; I am afraid that the bleed screw is just that: a tiny little screw with a square head that goes straight into the top of the radiator.
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    Whistling radiator bleed screw!

    The other day I became aware of a "funny noise" emanating from the hall radiator. After a careful listen I realised that the squeaking/whistling noise was coming from one of the bleed screws (its a double-panel rad). I tried to tighten it up, but it was already fully tightened. Realising that...
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    Air drawn back into CH system through vent pipe?

    Yipe. I'll put it back the way it was then. I have almost exclusively been bleeding large amounts of air from the bathroom rad and one bedroom. Paranoid about corrosion (very soft water round here so minimal scale worries), I spent a weekend in August flushing the system and adding Sentinel...
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    Air drawn back into CH system through vent pipe?

    Er, okay...I actually rotated the pump through 90 deg myself as it seemed to make more sense having the bleed valve at the top rather than on the side (with the speed switch on top)??. In Picture 2, the vent pipe is first to the right of the white plastic overflow pipe, and the feed from the...
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    Air drawn back into CH system through vent pipe?

    Mailed some pics to Admin, as I do not have a site that I can upload and link to.
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    Air drawn back into CH system through vent pipe?

    Guarantee on installation was only 6 months. This particular firm have stopped doing basic work in West Sussex, and will only come down from London for new installations (and only agree to do guarantee work on those systems they installed when they are in the same area putting new ones in!)...
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    Air drawn back into CH system through vent pipe?

    This is a bit of a saga, but I will try and be brief. In August 2004 my warm air system packed up, so I forked out for the installation of a fully pumped Honeywell 'S' central heating system. Everything worked great, but there seemed to be a lot of air circulating noisily through the...
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