Yeah, at this moment the computer room is all theory. It is where all the electrical comes into. But I designed the structure to support the weight of the flower garden. It’s about 6’ x 6’ and I have yet to fill it with water. I think the room is waterproof … hopefully. I planned to put measuring sensors and an underwater camera in. But it all hinges on whether or not it can support the weight of the pond. I guess it is about time I check it out. Might have broken a few laws with the electrical, hopefully there will be no issues
In regard to playing with concrete, you can make some really cool stuff just by filling in everyday objects. I bought some trick or treat pails after Halloween that looked like a caldron. I filled them with concrete and then stuffed a 16 oz “Red Cup” in the middle. Makes a cool planter.
A few tips in regard to concrete. Always wear waterproof gloves. Concreate will suck the water out of your skin and you can get concrete poisoning. This is a very nasty condition and totally avoidable. Wear eye protection and a face mask. Having water sucked out of your eyes or lungs probably feels worse than your hands.
Cement has to “cure” (not dry). Curing is a chemical reaction. Drying is when water evaporates. If you make something out of concreate, wrap in in plastic wrap.
If you are going to make a lot of concreate, spring for a Harbor Freight Cement mixer (about $180). Like all Harbor Freight stuff, expect it to be difficult to assemble and possibly be missing parts. Harbor Freight exists by not have quality assurance They know this, and will do just about any exchange you ask, no questions asked. I LOVE Harbor Freight! I have great Makita and Dewalt tools for stuff I know I will do year after year. But for things that I only need to do a few times, buying Harbor Freight is cheaper then renting. You just need to approach it with the attitude that it may or may not work the first time.