CMA Parts Coming Soon

List being populated as discovery occurs.

I'm still figuring out this setup with the Swamp cooler drain,,, but you can make a crude adapter as the standpipe/drain for the tub by carefully sizing a hole to closely match the thread of the PVC fitting and then using a pipe-nut or conduit nut and a fabricated grommet to secure the standpipe to the tub's floor.. (image to come).
Since the standpipe is over the fish-tank there may be less of a need to make a grommet, besides flange-support...
Placement of the hole in the tub will depend on the size of the bell-siphon and the material guard that you cobble togetherout of the things available.. For my initial setup, shown in the current images, the material guard is not yet added,, since the grow-bed material is being contained by the grow-tower container and the filter-material tub. (images currently show only one of those supplement-containment components).

Crude Parts List

--- 1/2" pvc/cpvc (both sizes will fit into the swamp-cooler drain standpipe)

--- OD-Threaded PVC fitting - Slip-fit ID other side.

--- Couplers & Elbows as needed

--- Improvised aspects - Open for discovery as inspired or found. (I save almost everything as parts used in this category)

 

--- Examples of Products Currently being used,, but there are likely other options.
I just grabbed the first things that looked practicable... This is not an endorsement of the sellers or products ---
Buyer Beware on eBay ( i will explain further about missing parts and not-as-discribed issues ).

--- External fish-tank pump & filter with hoses and accessories
--- Example currently in use ( https://www.ebay.com/itm/114179054083 )
--- The instructions on this item are not comprehensive. The hose connections are unique and seem OK (so far)
--- Hose fitting explanation coming to this link

--- Grow-bed media -- Example being used -- ( https://www.ebay.com/itm/224241249294 )

--- Filtration material __ Example in Use -- ( https://www.ebay.com/itm/284974377635 )

--- Tub or tank for fish ( Your Decision ) I'm just doing a crude setup to try a help my Chameleon Fish survive the winter (Misquito-Eating fish).

Refined Parts List

Swamp cooler drain adapter, with a garden hose adapter to pipe-thread (ID/OD?)

90 deg irrigation fitting threaded ID & OD other side. (image coming)

1/2 in CPVC or standard PVC

PVC fittings = ??? still figuring out this

Expansion --- Dual-Bed System


The Grow-bed on the right is fitted with the swamp cooler drain fitting with an exension to the stand pipe using CPVC pipe and a piece of vinyl tubing inserted as an orifice to match the fill-rate and reduce discharge rate.... The Bell of the siphon is a double-walled bell. The liner is also the roof of the bell. The liner extends all the way down to the air-gulp level at the bottom of the bell. This prevents any air, above the roof where it tapers, from getting past the roof end of the bell-liner..