"Robert Flory" wrote in
:


I've been using some for a year. The only problem I've had us seal
failure around the fancy poly tubing I use. I am switching to small
brass bayonet fittings .... the tubing slides over. I don't think
I've ever had a lid not seal, if it did... I'd just get no pressure to
the tank. That's a pain but no disaster.

Bob



For sealing you can also look for a glue called Goop. Comes in different
varieties but Household Goop is the one I use. Good thing about it is it's
one of the few glues that sticks to the plastic these bottles are made of,
it also stays flexible so acts as a sealant. I just drill a hole in the
cap of the juice container (nice big cap which is another advantage), put
the tube in, use the goop to glue/seal, push a little more tube into the
top which pushes the glue into the hole and it's sealed. With the big cap
I actually have two bottles in series. One bottles line goes into the other
bottle (so two holes in that lid) which goes to the canister filter.

Here's a trick for anyone inj into a canister filter. If you are feeding
your CO2 to an intake that's low or near the bottom of your tank, then you
do need lots of pressure and a perfect seal to get the CO2 down that far.
But, if you drill a hole just under the water line in the intake tube (this
is the tube that fits IN your tank and is under water, not the tube that's
outside your tank going down to your filter) to the canister filter and put
your CO2 hose there (a good fit is needed but not airtight), the water flow
will actually create a suction on the hose so you don't need a heavy seal
on your CO2 bottles to make lots of pressure. A good way to remove the
worry of whether your air hose is CO2 permeable and such.