
Eric Lim
Koi Lover

Jun 6, 2002, 9:17 PM
Post #28 of 29
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Re: [SMW1] filter construction
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Hi! to all, I think I better clarify things here, especially for beginners. 1. PVC glue - use to join PVC pipe & fitting. Can also for male/female threads, thought no necessary. Within half a minute - it will dry & hold fast. So make very sure the parts are in correct alignment before fusing. Best to apply on both inside & outside for thorough fusion in order not to leak. Tips here - if joint is small size = can use a Hair Blower to melt the glue in order to shift the position require or remove the joining. 2. Silicone glue - use this for PVC piping joining that you know one day you need to disconnect. Takes abt 8 hrs. to dry. Just hard one twist & will come out. Therefore, never use for piping under pressure, ie water pump outlet, Hi-blow air pump, etc. Strange thing is - when use on glueing glass tank, 5 pcs. of glasses together - can take pressure very well! Even for 6ft glass tank. Note - above 2 glues are never meant to patch up any FG tank cracks or any permantly bonding that need to take on heavy strength.. Must use fibre-glass repairing. As I'd said earilier - after drilling the require size hole, fit in the male & female coupling with gasket on the tank inside & FG on both sides. Or you may want to save cost & fit in a PVC pipe in directly & FG = then, *very important - the hole drilling must be just fit to slide in the pipe. Hold at 90 degree & FG. In my opinion - this method is risky. One hard knock can loosen the sealing & cost leak. Male & female joint can seal more firm. For the inner side, will be female piece (larger surface) - you can cut off the access pipe leaving on the thread inner piece. this way, the compartment got more working space. But then - if the drainage is on the bottom side , & one wants to drain off extremely low, then don't cut. Fit in a pipe & elbow piece to nearly touch the bottom. For those that's is draining under the compartment (the most ideal) - no need elbow, just cut the piece to lowerest in order to get the max. drainage.
  - if all these sound so blur & chim to you, , get a FG contractor & just pay the $$$... Pray that he do to actually what you want. My bet is - not likely... Rdgs, Eric Lim The Koi Club (S'pore)
(This post was edited by Eric Lim on Jun 6, 2002, 9:39 PM)
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