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tundish
The word tundish originates from a shallow wooden dish with an outlet channel, fitting into the bunghole of a tun or cask and forming a kind of funnel for filling it. These were originally used in brewing.
In general, any tundish will accept flow and store a small amount of material, while dispensing material elsewhere, similar to a funnel. In contrast to a funnel, the purpose is generally to regulate flow, and achieve a more steady output with intermittent inputs, and the tundish typically will take on a different shape.
Good evening,
I'd like your opinion on something that is worrying me please: my landlady's plumber replaced the bottom/night element of my 20-year-old unvented cylinder (an Ariston Classico HE STD 150) 5 days ago and I hadn't noticed that it was leaking. He fixed the leak today but now the...
Hi,
Recently had a new heating system and unvented hot-water cylinder installed (conversion from vented with tank). Everything is working fine despite the installation being rushed at times.
The 'main' guy (not the installer) from the company I used (with very good ratings) - can work with...
For over a week the kitchen sink is leaking water from what I think is called tundish ( I thought is was called overflow but little google search maybe pointed me to the right name)
my guess is the pipe is slightly blocked because this only happens when there is a huge amount of water coming...
Hi, complete novice here.
The other day we noticed a brown stain on the kitchen ceiling.
We have an unvented hot water cylinder in the airing cupboard upstairs and when checking this, I noticed that every time the central heating is on, there are some drips of water coming from the nuts/bolts...
Hi all
Totally new to this forum and hoping for some guidance.
Two weeks ago we noticed a brown stain on our kitchen ceiling. Above it is the bathroom and airing cupboard where our hot water tank is. We have a closed system. The pressure had dropped on our boiler and so we topped it up (have...
Hi. I've just had my unvented hot water cylinder replaced. Works fine, apart from a slight trickle into the tundish when the boiler comes on after a period of inactivity for about 10 mins, which then slows to a drip and stops. He replaced the expansion vessel, all valves etc with new parts...
Hi everyone
I’ve noticed the tundish on my megaflow drips when hot water has been on of a morning . It stops after I’ve had a shower . I noticed the shower tap is stiffer and water jets out when switched on .
Obviously too much pressure in system but it’s still only goes to 1.5 bar . How can...
We’ve had some issues with our boiler system making loud noises recently which sound like a bath being filled when you’re sat downstairs.
Upon inspection of the cylinder upstairs (boiler is downstairs), we can see lots of hot water coming out of the tank through the tundish and we have no idea...
James Reeves
Thread
cylinder
hot
hot water
system
tundish
unvented
unvented cylinder
water
Hi folks -
We have cold water passing through the tundish and out to the overflow pipe pretty much 24/7. I can't get a plumber out until Monday.
There is no other reason to have the boiler on just now, is it safe / preferable just to shut everything off until the plumber can get out? I...
I‘ve noticed that very occasionally I get a slow drip through the tundish and out through the overflow, only when the hot water is running. It drips about once every 10 mins or so and the water feels cold. It doesn’t drip every time the hot water is running but as I said above occasionally...
Hello everyone I’m just wondering how you go about piping a 22 mm vent pipe into a tundish when the inlet on the tundish is 15 mm and the outlet is 22 mm. Attached is a photo of the vent pipe from the cyclinder going into the CWST that needs redirecting into a tundish then to a drain.
Many...
I have recently noticed that the tundish is dripping ever so lightly.
I had a new boiler fitted in Nov and at the time the tundish was flowing a lot but the plumber fitted a water pressure valve which seemed to stop the dripping, but it has started again. Pressure on valve is same as was...
I have the usual problem of a dripping expansion relief valve on the cold supply to an unvented cylinder, which is shortly to be replaced (the valve) by a G3 plumber. What made it worse is that the drip (which has become an almost continuous dribble) tends to run down the inside of the tundish...
Tundish dripping, not sure if TRV or another pressure relief valve, the mini white tank not being upto pressure or something else.
Suppose job will be work out problem of dripping, and also help identify why diverter valve won't activate when hot water is needed to be tested. I have to hit the...
I have an unvented hot water system and water started leaking from the expansion vessel. I called a plumber and he came and replaced the the vessel but since then if i feel around inside the tundish it is wet, not dripping, just a bit wet inside towards the top and sometimes a little water falls...
Hi All
I have a Heatrae Sadia unvented cylinder... with the usual PVR on the side... which discharges to a tundish which is then connected to a 'fanny trap'.
The problem -
Water trickles through the tundish after about an hour or so of the hot water being heated and the pressure rises. It's...
Dribble in the tundish, sometimes hw sometimes c? What's going on?
Changed prv- and tprv, found exv poooped, changed that too. Continued to dribble- called V tec - said it had to be pressure reducing v, ( but the water is hot ) - changed that and guess what ? It's still...
Had a customer ask me to look at her unvented cylinder.
Cold water running through tundish. Isolate supply to cylinder and the water stops running, needs new combi valve.
She did have insurance who refused to touch it because it hadn't been serviced for 2 years.
I've advised to change t and...
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