4 inch acrylic tubing

[sleeman]

Harvey,
you are right about cure strengths. I never really paid much attention, but here are the numbers.
Lap joint bond strength is based on using 1/4” thick substrate with 1 square inch bonding area.
Weldon 3,4 and 5 all give 2500 PSI after 1 week of curing
weldon 16 is actually less at 2200 psi
and weldon 40 rocks at 4000 psi

Willow,
I don't bother with Keyholes for the Kalk reactor. I actually use nylon bolts. When I clean the reactor, I just fill the tube through my 1" union and the dump out through the same hole. I guess it might be worth it once in a while to actually open it up and give it a good cleaning.

Cheers,

Al