Can the growth screen slide out from either side of the unit once the cover is off?
Yes it can. There is no reason to bond in the end plates, they will stay in place on their own. Both end plates will probably need to be removed to disengage the Growth Chamber from the Base anyways.
And what mounting options are available?
People have been pretty creative with mounting methods over the past few years. You can mount the unit over the sump, on top of the tank, on a shelf above the tank, or even remote from the tank/sump (but it needs to gravity-drain to something)
I make acrylic mounting brackets which are pretty simple, it's just a 1" wide strip of 3/8" acrylic with a 1" strip of 3/4" acrylic bonded to the underside and a rubber strip on the top. I have been making these custom for each customer that wants one, but I'm working on a 2-part extruded ABS design that can be cut to whatever length you need. Same concept, different material.
I've mounted scrubbers free-standing in the sump using 1/2" PVC pipe and 3-way elbows to create a box frame, that worked very well actually.
I've used a sheet of thick acrylic with a hole drilled in it and laid it across the sump, that works too. You can also take 2 pieces of 3/4" or 1" PVC pipe with notches cut in them for the rim of the sump, ziptie a piece of egg crate to the pipe, and knock out a hole for the drain
For mounting remote from the sump, you can hard-pipe the drains. This worked OK on previous versions, but sometimes there was still some salt creep over time. The Rev 4 should not have this problem as the drains off the Base are ready for solvent welding (or friction fit - they are not under pressure)
For mounting on top of a tank, this works OK but the issue is that without any room under the scrubber for flow control, you can end up with a lot of noise from the drain sucking air and a lot of bubbles injected into the tank. But I'm working on a low-profile drain control valve system that will hopefully minimize this for this specific situation, and it will also replace the bulky 1.5" single-union ball valve.
I will try to post some examples of the mounting options I describe above...
Is the second hole on the bottom (next to the false bottom just an emergency outflow point? Wasn't sure because the description said on the side with the elbow
That is correct, the end drain is an emergency / secondary drain. The "side drain with elbow" is a reference to how this was designed on the previous 3 versions I made.
Dimensionally, it's actually smaller than my previous versions, which has the Emergency Drain on the side (elbow down).
