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Help with BSB tank fitting

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Hi  

i am connecting 6 tanks to I sump

I have holes drilled to suit 32 mm bsb tank fittings 

i have always used silicon in the past , but the place were I got the new bsb tank fitting assured me I don't need to use silicone 

my question is has any one used these with out silicon and had success 

 

thanks 

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I use standard PVC pipe fittings with a rubber ring (seal) without silicon. Much cheaper and more choice of fittings than bulkhead/tank outlet fittings. Mostly for sieve and setting water levels. 

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Hi aquagolic99

thanks for the info

i didn't know you could do that , dam I could have saved a small fortune I already got the bulk heads 

I will deferntly do that on the next lot

thanks heaps 

 

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My experience with uniseal through glass is hit & miss. It can take quite a bit of effort to push the pipe through even with lubricant or chamfered edges. 

And uniseals don't become cost effective until pipe diameters are large. 

 

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For smaller bulkheads (15-25mm) Bunnings sell both the expensive ones (Philmac brand in the plumbing isle) and the el-cheapo "Garden Rain" clone bulkhead in the irrigation section that is half the price.  The threads are a bit rough but it is still made of fibre reinforced plastic - I use lots of the 20mm - only $3.85 ea.

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