Just in case anyone is not aware on this group - there is a handy item just being marketed at
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- a tray that fits under your hot water cylinder and should it burst or leak, it vents the water to the outside - just like an overflow on a toilet or hand basin.
Simple really but it would have saved a lot of redecorating and trying to dry out my ceilings if I'd fitted one when I had the cylinder fitted...
The money and time would be better spent on a quality tank and taking care over the connections. Decent cylinders simply don't leak of their own accord. And if a cheap one split open, what sized tray would be needed to prevent spillage?
We have (had) a decent tank. It did however eventually split (18 years on). Not badly, and it was just a fast trickle; enough to ruin decorations in the room below. A tray would have worked nicely.
Ah - not directed at you since your plumbing skills are well documented on here. You should fit a tray under every joint you make. And another tray under the overflow pipe joint from that tray as that will leak too. A win win situation.
Leaving aside the pork luncheon meat aspect of this post, the actual product seems a bit pants inasmuch as it raises the cylinder by about 50mm which rules it out for most replacements since you'd probably have to re-do all the pipework - not to mention having to arrange yet another overflow pipe. And given the conditions in most airing cupboards there'll be a mass of lint and an old sock sitting in the bottom of the tray blocking the outlet pipe when it does leak. Let's face it: if the cylinder or one of its connections is leaking it demands attention pronto, so I'd be more inclined to fit a flat tray (which doesn't raise the cylinder) with an audible (very) liquid detector to let you know when there's something wrong. Something with a lithium battery should have a reasonable chance of still being working when it's needed.
I don't know how much the spam device costs but the fact that the website (which is pretty pants too) doesn't say suggests it's likely to be outrageously expensive ("if you have to ask you can't afford it").
Can't see myself fitting any unless the customer insists (and is willing to pay the £100+ extra).
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