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/diy/ - Do It Yourself

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1446315 No.1446315 [Reply] [Original]

I wanna make a slightly larger than your average bathtub "kiddie pool" out of spare pvc and a large tarp to have a comfy hot bath in with my gf.

I want to be able to lay on my back in it like you would with a bed.

The dimensions I plan to use for the frame are 6.5 ft x 3 ft x 1.5 ft (LxWxD).

The problem is I live on the second floor of a house made of cement.

I did some rough calculations and I'm worried about the weight I'd be subjecting my roof to.

Water weighs 62.4 pounds per cubic foot, so multiplied by a mostly full kiddie pool (like a foot in depth) and adding our combined weight on top of that, the pool will supposedly be upwards of 1500 lbs. That sounds like an imperial fuck ton.

Is this correct? If it is will my roof be able to hold the near equivalent of a smart car? Will the pvc even hold at that point?

>> No.1446337

>>1446315
floors are designed to be able to hold up a 500kg bath tub. have you considered how you would drain it?

fuck imperial, water weighs 1 ton per cubic meter at 25C. you can just like build a wooden frame to support an old spa bath and use that. they often have such tubs at the dump or people throwing out theirs. when the pump breaks. plug the holes and you're good to go. it's about mass distributed over an area. it's why you can hammer a nail into a floor but you dont fall through it by standing on it.

>> No.1446338

>>1446315
also you will need a hot air blower or water recirculator for that much water. it's why large tubs are always spa baths. it just cools down too quick.

>> No.1446359

>>1446337
>>1446338
Thanks, anon.

There aren't any dumps here, but I'll look around. I know it's all about P=F/A, but again, I can't imagine having essentially a small car chassis laying on the roof. I never knew something so simple could get that heavy.

The whole 1500 pounds thing still freaks me out.

I'll look into the tub dealio.

>> No.1446432

>>1446315
Your mum doesn't fall through when she visits so you should be fine

>> No.1446439

>>1446359
Choose location with supporting interior walls Anon.

>> No.1446484

>>1446359
Another consideration. Most pumps/circulators are noisy. Their location plays an important role in how noisy your relaxing bath will be. You may want to put the pump somewhere in another room and make pains to run the piping all the way to the bath from there. You can also use some sound dampening insulation panels made specifically for reducing noise. Just build a box around the pump (have proper air flow for cooling the pump if needed) and sound proof the wall between the pump and bath.

I can't count the number of times I've used a bath that has circulation or bubbles and all I hear is the fucking annoying as shit pump the entire time.