Don't go with 46 or 68 in cold climates. You will have sluggish response and possibly cavitation. I almost exclusively use atf in electric over hydraulic pumps. Works well, more commonly available in quarts versus hydraulic oil.
Going through this right now. Converting part of a shed to a chicken brooder. Base your stud location off of the current framing. Don't bother with a level if the shed isn't level. My shed is out of square because of the ground. It's actually a loafing shed with a tack room.
Yes, I'd say that's fine but why? Another 30 bucks and you will have better walls to attach your siding or anything else you want to attach to studs inside.
My milwaukee propex starts to struggle with 1", especially when the pipe is cold. Plumbed my own home, the tool was used but not used up. Glad you were able to repair it. Worth every penny.
I have one, it's just OK. The vent lines and fuels lines rot pretty quick, the air cleaner lid is not water tight so water gets in carb. The flywheel vibrates alot and has destroyed my diesel transfer tank because it vibrates the hell out of everything. Overall, much better than my previous...
You need the modulus of a rectangle tube and the wall thickness to support torsional stress. Anything offroad capable absolutely has to be over built and engineered otherwise the tubing will crack next to the weld joints and any structural mounting point. 1x3 .120 is the minimum I would use if...
The air over hydraulic unit at harbor freight would work fine I imagine. I am assuming the hand pump you have is "rated" at 10k psi? You may lack some precision with that style of pump. I have a 50 ton Ramco/Carolina that I used with a large pump from Temco. Worked real well.