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Can Big Buddy be connected to 3/8" male fitting of shut off valve on incoming line from 100 gallon tank?

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Posted on Jan 02, 2017

  • 105 Answers

SOURCE: insallation instuction for 29 gallon storage tank

the pressure valve usually has it's own hole,....a pressure valve (relief valve) has a probe that needs to be immersed IN the tank,...get that manual from the supplier (their responsibility), this part not being placed properly can be dangerous! so please don't take any chances,......

Posted on Jan 03, 2010

  • 349 Answers

SOURCE: main water line to house. changing shut off valve....

Brian,

I would try to tighten it up without putting tape on it. The ring will compress into pipe when you tighten it to form a seal.
If then it try's to leak you may apply tape or a paste type sealant to stop drip.

Posted on May 22, 2010

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Cannot shut off water to my atwood hot water tank in order to winterize


If you have no by-pass, or perhaps a valve in the system is faulty, simply but a 1/2"NPT fitting or nipple with Male threads both ends, or if necessary I use a 1/2"x 1/2" x 90 degree elbow and simply take lines off tank and join them together at the nipple or fitting you choose. That's a by-pass believe it or not. Or a simple piece of clear braided hose, with a barbed fitting clamped on each end with 1/2" NPT Male, then you can bend it around to where you need it rather than your lines.

Nov 26, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

The model I have is actually a 21VP4C-1. The water will not flow into the tank. It trickles in very slowly and then stops after about 1/2 gallon. Is there a float of some kind that may be stuck? The valve...


Turn water off and remove pipes between shut-off valve and water heater.
Water heater inlet may be clogged.
Pipes might be filled with sediment.

If clog is not there, then shut off water to house and remove shut-off valve located above tank.

Jan 29, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Only about a cup of hot water will come out, then it gets cold.


You need to check 2 things. First, go outside and carefully open pressure relief valve at top of tank,(careful in case hot water spurts out) and make sure there is water in it. Second, look at back of tank inside RV and check your by-pass valves(s) for proper positioning. Cold water enters the water heater at the bottom fitting, so that valve has to be open, as well as leaves water heater at hot fitting at top of tank (the highest fitting) so that valve as well needs to be open. Any valves that may be in between those 2 water lines need to be closed. I am assuming that the heater starts runs, shuts down etc, just not running any hot water through hot side of taps, correct?

Jan 18, 2011 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

My water heater is leaking cold water from the bottom. How do I fix it? its a Richmond miser. Model # 8v30-1


First shut off power then remove acess cover and carefully move insulation out of the way so you can see around elements.Check to see if leak is coming from around element.If it is determine what type of element you have. Either screw in or bolted in. Both have thick rubber gaskets that can be replaced by draing water heater and removing element then install new gasket and reinstall element.
To drain heater shut off valve on incoming cold water supply line ,make sure electric power is off. Connect drain hose to drain valve and put other end to floor drain or sump basin.You can open faucet on hot side near by to prevent vacumn and drain. If you have screw in type disconnect wires,marking them for reattachment,then use large open end wrench or pipe wrench on hex section of element and turn to left to remove. If you have bolt in element spray bolts with wd-40 or similar and carefully loosen bolts then disconnect wires and remove element.install new gasket and reverse to reinstall. I would recommend that you replace elements at this time if you are sure this was the source of the leak.
If you don't think it's leaking around elements then check fitting on both water lines to water heater to be sure they are not leaking and seeping down thru insulation and leaking out of the bottom of heater. Next check around drain valve for leak and if it's leaking you can try tightening it a little or replace it with 3/4 x2 brass nipple and 3/4 inch female iron pipe boiler drain. Use teflon tape or pipe joint compound on all threaded connections.
After you have eliminated all other sources for leak then it is probably the tank itself. If it is less then six years old the tank should still be covered under warrenty. Most warrenties will give you a new heater but installation will not be covered unless you have extended service coverage.
I hope this helps you some. Thank you

Dec 27, 2010 | Audiovox Richmond 6EM30-2 30-Gallon 6-Year...

1 Answer

We have a brand new rheem 40 gal elec water heater, after installation we have water leaking from the base of the relief valve, pooling up in the plastic fitting and making it way over the side all over...


Water heater should be set in a drip pan.
Otherwise, put 1 gallon bucket under TP release pipe to catch water.
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#drip-pan

When you say relief valve, I assum you are talking about brass valve located on top of tank or near top of tank. This is TP valve and a pipe connects to this valve and runs down to within 6" of bottom of tank. TP valve has a small lever on it.
If you are talking about tank drain valve located at bottom of tank, then add a comment.
Following information is for TP valve.

Dripping TP valve can be caused by 3 different thing:

1) Obstruction inside TP valve. Open TP valve for a moment to flush away particles and slowly lower lever back down. See if water stops dripping, if not, then replace TP valve

2) Defective TP valve: replace TP valve. Turn off electricity to water heater. Let heater cool for several hours so you do not get scalded. Close shut off valve located above tank on cold side. Open tub spout to relieve pressure, open tank drain or open TP valve and empty water below TP valve level. If TP is located on top of tank, not much water has to be drained. Tank is under press when hot, so be careful. Put teflon tape on new valve and install with big pipe wrench by turning clockwise until TP valve is very tight.

3) Overheating tank. TP valve is temperature-pressure valve. If tank water is over 150 degrees, the TP valve starts drizzling hot water to relieve tank pressure.
Lower tank pressure two different ways:
a) turn down thermostat
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html
b) install expansion tank on incoming cold water line
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#expansion-tank

Dec 19, 2010 | Rheem Water Heater Pressure Relief Valve

1 Answer

I have a hotpoint hot water heater it's about 6 years old. When I turn the hot water on it runs very slowly the water pressure is very low and it's like this throughout the house how do I fix this problem...


You have clog in the water line.
Since all hot water pipes are involved, clog is probably near water heater.

Buy pressure gauge at hardware store that threads onto hose connection.
Brady BTG 100 at Amazon
Picture of gauge

Check outdoor pressure for baseline pressure in your home.
Turn off electricity to hot water heater for an hour or two so there is not scalding water.
Open drain valve on water heater to see if water heater is clogged with sediment.
http://waterheatertimer.org/Water-heater-will-not-drain.html

Put pressure gauge on drain valve and compare with outside pressure.
Open hot water spigot on bathtub and see if tank pressure drops ... if tank pressure drops significantly with bathtub spigot on, then clog is on incoming cold water before tank, and could be on outgoing hot water pipes too.
If tank pressure stays about the same, then clog is on outgoing hot water pipes.

Clog can be sediment caught in cold water shut off valve located above tank. Open and close valve and test pressure again. Take apart incoming cold water pipes above tank and check for sediment. Replace valve. Look at condition of cold water nipple on top of tank.

Sediment caught at hot water elbow near tank.
Sediment can fill up old pipes. Take apart hot water pipes above water heater and see condition.
Look at condition of hot water nipple on top of tank.
You may have to take apart pipes up to first or second elbow.

Pipes can decay at joint where copper pipe connects to galvanized pipe. Check for copper to galvanized connections on cold or hot pipes and replace section of galvanized pipe. Copper pipe will probably be good, the galvanized pipe will deteriorate. Replace copper-to-galvanized joint with 3/4" non-conducting union from hardware store

Dec 06, 2010 | Water Heaters

1 Answer

The hose leading out of the water heater on the inside of the trailer has rusted off. My dad has in the past use epoxy putty to repair it but it has come loose again and I would like to know if and how it...


Coming out of the back should be a 1/2" NPT short nipple, or a check valve with 1/2" NPT threads. ( NPT = National pipe thread. Just ask for a 1/2" galvanized pipe nipple the right length.(short, or 2" usually) If it's a check valve, it will usually be brass or plastic/nylon. I prefer galvanized just because the tend to hold up better. Most water lines connect to that, unless yours has a different fitting such as a female flare going to a male flare fitting in tank. Either way, you'll have to get old one out and match it, to allow for water line fitting to re-attach, or change end of water line to proper fitting to attach to nipple. Without seeing exactly what you have, I can't explain exactly what you need to do.

Nov 01, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

2 Answers

MY Atwood 6 gallon water heater will start heating the water. I turn on the water and it is hot for about 2 minutes and then is cold. The water heater does not turn back on. I waited a couple days and...


Try opening the pressure relief valve (carefully so you don't burn yourself) slightly, and see if water comes out and if it is hot. It sounds like you may have very little if any water in there. Check by-pass valves at back of water heater for proper positioning. Cold should go in the bottom, hot out the top. Make sure there is flow through any valves going into bottom, and any valve at the top.Any valves connected in between the hot and cold should be in the off position. If need be, to test if incoming cold water getting into tank at bottom fitting, shut off water, relieve pressure in system by opening taps until all pressure is gone. then close all taps. Now remove your drain plug, then turn water back on, and water should shoot out the drain plug hole with good pressure within a few seconds and flow steady while water on. If not you have a restriction such as valve in wrong position or faulty, so try moving valve to get better flow out drain plug. If flow out drain is good, then make sure valve at top fitting on back of tank (if any) is also open for good flow . Any other valves should be closed in between those 2 lines. Let me know what you find.

Jul 16, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

Water leaking from the bottom of the big PVC pipe parallel to the water heater


What is the leaking pvc pipe connected to? The T & P valve on the side (or top) of the tank? Or is it an incoming cold or outgoing hot water line? If you have just lit the water heater, the T & P valve may drip, but only for a little while and it will stop. The T & P (temperature and pressure relief) valve may be bad and need replaced. Turn off the incoming cold water valve and turn the gas valve to off position. Then drain the water heater using the T & P valve, it will stop draining when the water level is just below it. Remove the T&P valve and replace with new one. Use thread sealing tape on threads. Or call a plumber if not sure.

May 15, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Code LC, I cleaned the filter, won't stop beeping


you need to flush out the rinnai. to do this you will need 4 gallons of white viniger & a circulating pump. #1 disconnect the power. #2 close both incoming & outgoing water valves under the unit. #3 conect a drain hose to the out going flush valve ( flush valves are under the unit & have brass caps) #4 connect pump outlet hose to ingoing flush valve. #5 put pump incoming hose & drain hose from outgoing flush valve in a 5 gallon bucket. #6 pour 4 gallons of vinager into the bucket. #7 open both flush valves. #8 turn on the circulating pump & let viniger pump in the incoming flush valve through the rinnai & out the outgoing flush valve back into the bucket for 45 min. #9 disconct pump from incoming side & close incoming flush valve.( don,t close outgoing vaves at this time) #10 put out going hose in empty bucket. #11 open incoming water to flush viniger out of unit. # 12 disconct outgoing hose , close outgoing flush valve & open outgoing water valve. #13 clean filter & turn on power.

Jul 08, 2009 | Rinnai Water Heaters

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