HI all, newbi I bought a brand new Gas water heater (Suburban SW6P) for my 1971 21' holiday rambler. I put the new one in with no problem. Lighted the baby up, it ran for awhile than went out. I did this a few more times and it did the same thing. Basically what's happening is, the burner sound's loud, like it should, then the noise level will go down, like it's not getting enough gas, then cut's out again. I brought my trailer in to where I bought the hot water heater. Of course when I had it there, the darn thing ran fine. They did hear it change pressure has it was running. They suggested I get a new regulator for the front of the trailer. The next weekend we went camping and it ran fine until the last day. O by the way, my furnace seems to be acting up also, pilot light not staying on after furnace go's out. So, when I got back I went and bought a new regulator for the camper, put it on, same dang thing happen. Can anyone else tell me what to check next?