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Thread: UV Sleeves breaking
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05-04-2021, 04:27 PM #1
UV Sleeves breaking
I have 2 UV's on my system. Every year when changing the UV tubes I would attempt to remove the Quartz Sleeve to check if it needs cleaning and every year as soon as soon as I try to unscrew the locking nut there is a cracking sound and another quartz sleeve bites the dust so it's a new sleeve again. So this year i'm only changing the tube and leaving the sleeve alone. The irony of it is that whenever I removed the sleeve it didn't actually need cleaning! Has anyone else had this problem? Or am I just ham fisted! The UV's in question are an EA and a TMC.
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05-04-2021, 05:01 PM #2
when you replace the quartz sleeve use a very light smear of silicone lubricant, and wipe the excess off.
on the threads, as well as the o rings, but don't over tighten!
as the silicone will make over tightening easier, but disassembley much easier...
i think the probelm is slightly over tightening the locking nuts. and the rubber o rings adhere to the nut and glass sleeve.
then when you undo them the sleeve gets a twisting force applied to it...The Solution to Pollution is Dilution
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05-04-2021, 05:22 PM #3
Thanks for that I have put vaseline on the o rings but propably over tighten the locking nut. The TMC is at least 10 years old and the last time i replaced the sleeve I couldn't find a sleeve of the right length they were all about an inch to long. I ended up trying shorten one, it sort of worked but now i have one end of the sleeve with a jagged edge. I intend to replace the TMC for a something newer next winter.
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05-04-2021, 05:35 PM #4
Ea are a mare for smashing like hate them lol
Sent from my F5121 using TapatalkJohnathan
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05-04-2021, 08:19 PM #5
I had a similar problem and eventually found it was caused by the O Rings being undersized allowing the end nuts to nip the tube, The O rings were supplied loose by a koi dealer but when compared to the genuine ones they were a fraction thinner so I now make sure I buy the genuine parts only.
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Ajm Thanked / Liked this Post
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05-04-2021, 09:51 PM #6
if they are tmc units there are two different size o rings make sure you get the right ones otherwise you will crack the sleeve
1 set is 29mm dia x 4mm the other is 29.5mm dia x 3mm
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