hey ledelk, the sweating doesn't look too bad at all. but when using a piece of copper as a union like you need to between the t's n' caps it is best to have some of that piece visible. even 1/4" would suffice. as it is noone can say visually whether the joint is sound or not. and as was said by low_ryder, "don't half ass it". electricity and water is no joke.

when sweating copper, yes you do need to apply flux to both surfaces after you have cleaned them.

ummmm here..... found it for ya, simple how to: How to Sweat Copper Pipe - Sweating Copper Pipe Joints - Popular Mechanics

at least he has pictures for ya too, lol. sometimes it helps alot. fine sandpaper will work for cleaning the outside of yer pipes.

also, the last couple days its been buggin me about expansion of water in the pipes when it is heated. mebbe overthinkin on it, but a relief valve? what temps might this get to?


hope it helps ya buddy!!