Water level gauge

[eg8r210]

I am building a new stand for my frag tank and underneath will hold my 30 gallon top off can. I will no longer be able to open the lid to look in so I wanted to create a water level gauge on the outside of the can. My idea is to use the quick connect fittings and tubings that you see on RO/DI units and find a clear tubing to go from the bottom of the can to the top. My problem is that I cannot see to find any that are a bulkhead (preferably a 90 deg bulkhead). Is there such a thing? A bulk head to pull tight and be leak free on one end and a 90 deg quick connect on the other. I could put one on the top and one on the bottom and then just run a straight piece of clear tubing between the two.

If there is no such thing as a bulkhead per se how well do you think silicone will hold up under the pressure? The guy at home depot seem to think it would be fine but I was skeptical. They had one that was threaded on one end but the hardware section did not have any nylon nuts to screw onto it. If I have to go the silicon route I guess I will just try and lightly bend the tubing upwards.

What are your thoughts? What would you recommend?

[NanoReefWanabe]

uniseals?

[sleepydoc]

You're right to question the guy at Home Despot.

Uniseal would probably be the easiest - put a uniseal at the base of the container, then either a street elbow with a threaded adaptor and a threaded john-guest fitting into that, or a threaded-slip elbow with a stub of pipe to go into the uniseal and a threaded john-guest directly into the elbow.

[eg8r210]

Wow, I had never heard of uniseal but I watched a video on BRS. Seems pretty simple.

1/2" is the smallest BRS sells, that should be fine, right?

[Lilmatty5dimes]

i've got some 3/4" if your interested

[sleepydoc]

http://i1352.photobucket.com/albums/q660/p-testerman/Uniseal_zpsc9864a7c.jpg (http://s1352.photobucket.com/user/p-testerman/media/Uniseal_zpsc9864a7c.jpg.html)

Drain for my DI water tub - 1" uniseal with a pvc street elbow through it. Hasn't leaked yet!

[79chopperdr]

Should be able to drill a hole and tap for 1/8 pipe threads then just screw in a John guest fitting. I've been considering doing the same thing on my RODI barrel.

[c_paul]

Yoy don't need anything too fancy.


What about:
http://www.ebay.co.uk/itm/290541645421?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

And a length of airline?

[sleepydoc]

How do you propose tapping a piece of plastic that's only 1-2 mm thick?

To the OP, I found this (http://shopping.yahoo.com/735163527-tank-connector-15mm/), that might work.

[nazerine]

the nice part about using a uniseal is that you dont need to reach inside to put on the lock nut.

otherwise if you wanted to use a bulkhead, use 1/2" threaded bulkhead, 1/2" to 1/4" pvc bushing, then 1/4" npt to 1/4" john guest fitting, find some 1/4" acrylic tube