my original gas heater installed with pool in 1999 was replaced 2 seasons ago with "gently used" one Teledyne Laars XE model EG 125 at suggestion of pool repair guy for $500. End of last season August 2012, heater not working. Pool repair guy (The Pool Doctor) ends up taking out inside of heater. I keep calling and he keeps telling me he'll be by to reinstall. I probably called a 100 times! This past week, yes ,he finally admits he cant find a part for it. I told him just bring it by I'll find someone else or whatever. He says he cant find the Regulator valve/stem to adjust pilot. He lights pilot and it is just one big flame. So, do i try and find part and obviously a new Pool repair guy or just get a new heater? I want to get swimming soon! I would appreciate any insight and info. Any recommendations for natural gas heater and installation. Thank you all in advance!