Plywood lined Ranchu Tub:
23/32 4 ply exterior grade sheathing plywood
1 1/4 deck mate screws
Behr high gloss exterior "black forever"
Pond liner
Stainless steel staples
Do a large water change to fill with water for a perfect fit.
Clamp into place and mold to the box as you go. Cut the corners to allow the excess to wrap over the sides of the tub.
Once the fit is perfect staple the extra liner to the outside of the tub with 5/8 inch stainless steel staples.
Once the fit is perfect use a razor to very carefully cut a hole in the liner to receive the bulkhead fitting. A little silicone will go a long way for a leak free connection.
Tighten the bulkhead with a home made one inch bulkhead tool. Trace the nut with a sharpie onto the end of a two inch schedule 40 pipe and sand out the excess with a dremmel.
72 inches by 24 inches by 12 inches. Total Volume 80 Gallons will run at between 50 and 75 gallons depending on water depth. Total cost about $35.
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