Im currently in the process of getting everything together for plumbing my 240 gallon tank. I have double sided threaded bulkheads and was curious as to what others use to get threaded pvc unions a proper water seal? During my leak test I used teflon tape and it wasn't too successful. A few had small water drops. Could possibly be the wrong teflon tape? Or maybe not enough tape on the threads? I've also read in other threads never to use teflon tape but some say yes. Very confused, lol.
Plumbing question for new 240 gallon
- Thread starter AndrewNC
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IronVulture
Valuable Member
Just use more teflon tape it is the easiest cleanest way to seal the threads. About 10 wraps should do maybe a little more if your using the really cheap stuff.
SR Aquaristik
Active Member
Use low tensile strength silicone, it enables you to reuse any threaded bulkheads if you change your plumbing. I will never use anything else on threaded fittings. Aquascape makes a great silicone for threaded pond fittings. Do not use it to seal an Aquarium. I hope this helps!
I use a higher quality (thicker) Teflon tape and make sure it's put on clockwise. Silicone works well too but be carefull because it can act as a lubricant and before you know it the fitting is buried all the way into the bulkhead and the bulkhead is cracked.
