Is my breaker box three-phase or single-phase? Rang BGAS services and they can not come out till Monday morning I know its not the ball cock as I have checked. Oh is this a cold water cistern that supplies your cold taps or just a header tank for central heating? Plugged line somewhere between main and valve? the ball float in the tank has stuck shut. Discussion in 'Plumbers' Talk' started by Ross 1366, Mar 12, 2010. **PLEASE READ DETAILS**? As this water leaves the cylinder cold water flows into the bottom of it from the cold tank. Hot water expands and requires relief. Tank was drained to empty, ball cock was replaced, leak stopped but now whenever the hot water is run we have a loud noise that can be heard in the pipes, immersion tank and tank in the loft. When the tank is filling at full flow there's quite a bit of noise being transmitted back down the cold water pipe and into the bathroom below. If it was only radiators not heating up I would say airlock, however the fact you have no heating or hot water suggests this is not case as the hot water cylinder is fed from the bigger tank ( cold water cistern) in the loft, not the small f & e tank so draining the rads would not effect the hot water. At times of higher water demand, the water in yer hoosie falls to zero. The rising main enters the loft with what i beleive is a 15mm pipe, it runs into a service valve and then is 'T'd off to the CWST and the CH Expansion tank, the flow rate is the same at both tanks so I know the flow rate/preassure problem is not to do with the ball valve oni the tank. Is there a way I can find out of loft tanks fill up? You may have an expansion tank to handle this or you just have an open vent that runs up and fills into the cold water tank in the attic. What is the impact rating for a metal roof installed over shingles? Usually (though not always) the water mains comes into the house and a pipe runs to your kitchen sink for your category 1 (potable) water supply. You can sign in to give your opinion on the answer. If you want to replace the hot water tank but not any other appliances within your heating system, it should cost around £500 for a new vented system tank and for a heating engineer to install it. After that it lasts for a few weeks but eventually the problem occurs again. If the washing machine is filling at the start of a cycle (does it use hot water from the immersion heater), I also hear the noise but not as loud. – Dcooke Jan 28 '19 at 18:09 We then went up into loft to find that the cold tank is not filling up. DIGITAL SPY, PART OF THE HEARST UK ENTERTAINMENT NETWORK. Water tank in loft is not filling up so we have no water accept the water in the kitchen which is mains fed. Registered in England. Washing machine: what's the worst that could happen? If hot water is coming out of the overflow pipe, turn the system off, wait for the water to cool right down and set the float valve to allow less water into the tank. The cost of an unvented system might be more. In addition, sometimes it’s necessary to clean the water tank to ensure the water is safe for use. Turn main on to refill tank . Cold water storage tanks are generally situated in the loft. The valve may not be closing fully and shimmering on the water causing the noise. Often people ask us for information on cold water tanks and below is a brief description. They can be used to supply the hot and cold water taps on the bath. Hi I wonder if someone could help. However, moving the hot water cylinder up there as well is a bit of an unproffesional thing to do (think I've done it once in 40 years of plumbing), loss of the static head being the main reason not to along with a host of others. Your hub's friend who had that bath - the hot side filled ok because you have that cold storage tank in t'loft. If main off no more water will come in Then do your job. Realised the plastic was resting on the float so moved that. I have an open-vented hot water cylinder with a cold water feed and expansion tank in the loft which keeps overflowing whether the hot water/central heating is on or off. The cause is usually the result of a mixer valve which is supplied with mains cold water, and hot water from a hot water cylinder. Loft water tank(s) issue - Not refilling so no cold water upstairs. Cold taps working fine. All Rights Reserved. Help! The one for radiators seems ok but other is not filling up. what is the size of my whirlpool washer model number lsn1000kq0. Did not change whole arm. What do you think of the answers? There was a lot of steam coming out of the tank so we have now temporarily covered the tank. I have often moved CWS tanks into the loft in order to free up space and also improving the static head for the hot water. Hot Water Filling Cold Tank. I recently replaced the ball valve on my cold water tank in the loft but ever since then my wife has complained about the loud 'whooshing' noise as the cistern fills. When the water runs dry, if I go up into the loft and kick / prod the tank, it starts filling up with water, I can hear it flowing. Repositioning your water tank doesn’t take much time at all, usually making up roughly one day of labour for a plumber, so you won’t have to go without that hot water for very long at all. ?. Noticed another smaller tank above and to the right covered with plastic and it was warmer water. The cold water feed and expansion tank overflow pipe runs from the large water tank in your loft to the outside of your house. Water tank in loft leaking; Water tank in loft empty Water tank in loft making noise; Water tank in loft not filling up. The valve is a type 2 high pressure. Normally, hot water tanks nowadays last about 10 years and by draining and filling your hot water tank you can prolong the life of your tank by removing any … Water tank in loft is not filling up so we have no water accept the water in the kitchen which is mains fed. For explanation the large tank is your cold water storage cistern. we had a small amount of hot water only for it to dry up. If water has been stagnating because of blockages or the water is not being used regularly or the tank’s capacity is too … I'm not a plumber but I had the same problem and it was a blockage in the valve of the ballcock. Any idea people? They can also act as a Feed and Expansion tank (F+E) for the heating system. Mains cold water is at a much higher pressure than hot water from the cylinder, which is delivered via gravity. Hot water pours into the tank from a pipe positioned above it. When I first heard it I thought it was a very low flying plane outside to I've you an idea of the noise. Got it replaced, for that all water from the tanks were flushed out. Freezing Being in a loft space that’s often unheated can mean that the water in the header tank is susceptible to freezing during the winter. Given enough time, that cold tank will refill as it should. Even when no water is being drawn or if the heating is off, it's a constant noise of the water tank refilling. To be honest I’m not sure, my knowledge of plumbing is pretty limited. The water is not entering through the tank from the ball valve as I have isolated this line. You can replace the ball cock and fittings yourself - my neighbour did, but if you weren't even aware of 'floats' and that they are even called ballcocks, I would advise you to get a professional in. I have opened the top and looked at the ball cock and pushed it and lifeted and no change. what are the best pliers for a hose clamp? I had it replaced on a Saturday by the friendly local plumber and it cost me £20. I have hot water being forced back up the feed pipe from the central heating expansion tank in the loft. ©2020 Hearst UK is the trading name of the National Magazine Company Ltd, 30 Panton Street, Leicester Square, London, SW1Y 4AJ. Would anyone be able to explain why the tank could be filling up with hot water. The water in the tank looks dirty brown so I think it’s from the central heating part of the system. My home setup is: I've a water tank in the loft, a hot water tank at floor level and a shower pump, that pumps both hot and cold water to the bathroom tap, shower and toilet. hot water pumping into header tank 26 November 2007 at 5:06PM edited 30 November -1 at 12:00AM in In my home (includes DIY) MoneySaving 19 replies 29.9K views Your ballcock is buggered. I know its not the ball cock as I have checked. The tank supplies your bath and basin taps and your hot water cylinder with water. 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