Originally Posted by BigdogKC
Ok, I have 2 UDS and I went real cheap and drilled 4 - 1" holes about 3" up from the bottom. I have an OK time with keeping the temp where I want it, but I was wondering if I can improve it by installing a valve? Also if the you think I should go with a valve, how hard would it be to do considering my current hole setup?
Matter of preference. Valve works for me. If they are clean 1" holes 3/4" nipples screw in and can be welded or locked in with conduit nuts. Someone didn't read whole thead.