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Comment by Jon Parr on December 24, 2012 at 6:16am

true that, but getting access to the other side of the hole to slip the support block is what is tricky. Not impossible by any means, but you have to plan for it. For instance, if will wanted to now install the UniSeals through the bottom of the troughs, he would have to figure out how to get through those redwood frames, hold a block up tight to liner, and then get it out after the pipe is in. You definitely want a few extra hands when it comes to bigger UniSeals

Comment by Chris Carr on December 23, 2012 at 9:54pm

Thanks. Well if you had to do more than one of them, Id assume an old scrap board like a 2x6 with a hole slightly bigger than is needed across a couple workhorses would help support the whole thing while jamming the pipe in, or still not so simple?

Comment by Jon Parr on December 23, 2012 at 4:31pm

That's exactly right Chris, and you're pretty handy with that MSPaint!

I use a more rigid, but still flexible, backer for the DuraSkrim, like an old frisbee. The backer has the proper hole cut in it, and the liner is just sliced a few times. I learned from TC at her place in Florida. It's a bit tricky to hold it all firm enough to get the pipe through.

Comment by Chris Carr on December 23, 2012 at 9:42am

Sorry i was being more specific to the uniseal install through the duraskrim. If you were to cut a hole the size of your uniseal in the support boards, and snip through the duraskim and push the uniseal through, i would fear that over time if the duraskim were to shift (it shouldn't but i donno) you could stress the liner at the point of the uniseal. I know its strong stuff but better to not stress at a cut site if you can avoid it. Using a separate floating board to back the uniseal independent of the liners support frame allows it to be a little more flexible. Maybe im over thinking it though.

I hope it all works out for you. It looks great!

Comment by William Hall on December 22, 2012 at 10:00pm

Chris, I'm pretty sure Jon us using the same dura material I am here but I'm sure he'll confirm.  Really wasn't too big of a hassle to install and depending on where you're at and how much you need (said you were building a small system?) you might be to find someone with enough left over.

Comment by Chris Carr on December 22, 2012 at 9:49pm

I really dig this boxed frame + liner method for some applications like you have here. Im considering something like this on a smaller scale depending on my available materials.

 

Jon, do you run uniseals through durascrim like mentioned in this thread? http://community.theaquaponicsource.com/forum/topics/cheap-or-easy-...

Comment by William Hall on December 22, 2012 at 12:40pm

We were already on the fence with the loop siphons and I leaned that way because I was so nervous about cutting a hole in the bottom or sides of these things.  Worse case I have to buy a storage tank and pump the water out or down in the tanks and install them later I guess. This is a big reason why we built two systems so when we screw something up in one we won't kill everything. Fingers crossed!

Comment by Jon Parr on December 22, 2012 at 12:32pm

So clean and blue!!! If only that would last once fish start growing...

Looks great Will, can't wait to pay you a visit. I have a hunch that you'll someday wish you had side or bottom plumbing instead of those loop siphons, but time will tell, eh? If you need me to, I can show you how to use uniseals with duraskrim, or home depot has shower drains that work great, only $3.59 each, 2" with stainless steel grates on each one. Looks great, though, good work. I'm jealous.