Must have something to do with the amount of usage, 4 person family versus 1 person and how much water they use/flow thru it. 2. One way for this to happen is to have a check valve installed on the water supply coming into the home. You dont have a T&P valve, you have a pressure relief valve for a boiler thats set to discharge at 30 psi.
Home Shop Water Heaters Water Heater Parts Marathon Vacuum Relief Valve.
Thanks for all the help. This form must be completed and signed prior to us conducting any moisture testing. The expansion tank works by allowing more room for the heated water to expand too. Cabrillo Plumbing, Heating and Cooling 2022 | All Rights Reserved | 415-821-0560 Ill come back to those in a minute. Buy a pressure gauge with an extra indicator to show surges, and connect it to theplumbing system. We have a rheem water heater that is leaking water. Enter Our Dog Days of Summer BBQ Giveaway Now! Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! 
Remove the faulty valve or install a new one, but the teflon tape around the threads, and after you tighten it firmly, the dripping should stop. 
Never cap a vacuum relief valve its there for a reason to prevent a vacuum from forming in the instance of a break in the line..
These valves cost less than $15 and replacing the valve is a basic job. That might take about an hour or two. Have you checked with your utility company about any rebates or tax credits? You must log in or register to reply here. The valve functions by releasing water if your water heater becomes too pressurized. When water is heated up inside of a water heater, thermal expansion causes the pressureinside of the tank to build up. Thanks for the response.
I can think of 4 possibilities: When water expands and cant go anywhere, pressure in the system increases. Just found out rheem will void the warranty if no valve. Sign up for our newsletter to be notified about discount codes and specials! Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. A vacuum valve must be installed on the cold water inlet in either a vertical or horizontal position to assure warranty coverage a marathon water heater. Any ideasthanks, Just remove it inspect the connection and install a new one. Every one ive seen has corrosion on it from that valve. 
Mom's cheap 40 gallon State is about 25 yrs old with hard water and no sandhog elements and works great. Square D Electrical Panel Recall - Click Here to Read More, the code requirements for discharge tubing in Florida, How Long Do Water Heaters Last? Tape clear plastic to floor around water heater; The vacuum relief valve is used on rheem marathon water heaters to help prevent the plastic composite tank from collapsing. Learn how your comment data is processed. Also, great for use with radiant floor heating systems! JavaScript is disabled. Turn the water back on slowly and turn the water heater back on when it is full. Replace with a new TPR valve and discharge tube. Reuben Saltzman A leak from the temperature pressure relief valve (tp valve) may be caused by overheating or excessive pressure inside the tank. 
MY that is strange I wonder why they just did not drill a hole on the cold dip tube like a standard hot water tank for vacuum. Fairview, OR 97024. Thousands of Satisfied Clients in San Francisco, Palo Alto, Burlingame, Menlo Park, Belmont, Portola Valley, Redwood City, San Mateo, Los Altos Hills and other communities. The valves prevent the build up of negative pressure which can unbalance the Make sure this fits by entering your model number. 
Once the pressure gets to 150 PSI, the TPRV should do its job and leak. I have a marathon in my home. The Marathon 85 will cost me $250 more than a comparable A.O. Discharge through an air gap located in the same room as the water heater. 1: The T&P relief valve is open. This is a simple and straightforward fix; an expansion tank will give the water somewhere to go when it expands, and the TPRV on the water heater will stop causing problems. If your pressure relief valve is leaking, for the most part it is an easy fix. 
I dont see a lot of these in Minnesota, but I do see them periodically. Serving Orlando, Tampa Bay, & the surrounding areas.
If the problem is a faulty valve, then you might have an actual leak. If you replace a TPRV and it starts leaking again, it probably means the valve is doing its job; its relieving excess pressure. Your getting some good pricing. 
It can be installed in either the vertical or horizontal position. Therefore, extremely hot water should discharge to the ground for safety. Terminate not more than 6 inches (152 mm) above and not less than two times the discharge pipe diameter above the floor or flood level rim of the waste receptor. I've got water coming out of the vacuum relief valve. A leak from the temperature pressure relief valve (tp valve) may be caused by overheating or excessive pressure inside the tank. This is a simple job. let the pressure off and bleed it down below the valve and plug it. As seen in the featured image, a TPR valve is required to have a discharge pipe/tube. How often do you see an installation with a PRV and no expansion tank? I guess I'll have to call where I bought it from on Monday and ask. However, if you do this step and the temperature-pressure relief valve is leaking again, it is most likely a separate issue. If the pressure increases with this test, however, youve made an important discovery. much more efficient than other tank heaters. Put a bit thicker o-ring in and put it back together and it's working just fine. Not be directly connected to the drainage system. It may not display this or other websites correctly. If the holes are of any cosmetic concern the property owner can have them painted with a matching paint. When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions. Great post! Have a rheem marathon heater. Without a vacuum valve properly installed, a break in the main supply line can create a vacuum within the water heater and irreparably damage the inner tank. Discharge in a manner that does not cause personal injury or structural damage. This will cause the water to expand significantly until the water heater thermostat is satisfied. Does it have a threaded outlet which I guy can screw a plug into? the tank is PE, and without the vacuum breaker it can make the tank suck in when draining it. Or are you saying its a code requirement because of the possibility of a closed system, but most cases wouldnt require it for correct operation since its not actually a closed system? See below. No it doesn't , state code dictates. Thanks for all the help. We cannot perform the moisture testing requested by the buyers without this form being signed. The Marathon electric water heater with the plastic liner has been around for more than 20 years--we installed one in my parents home in the 1980's and at that time it was being sold by Sears. 
Is that a recent code change? For 250 buck difference and a tank that will never leak I would buy one. If the pressure in a plumbing system ever exceeds 150 PSI, the TPRV will leak. But everything is totally enclosed one cannot see.
Age & Replacement - Waypoint, The Complete Home Inspection Checklist | Waypoint Property Inspection.
I understand the above information and give my permission to test the building located at: PODCAST: Tessa and Reuben get serious about attic access panels.
78 Dorman Ave San Francisco, CA 94124 United States, Terms & Conditions | Privacy Policy | Sitemap | Design & Marketing by LeadsNearby, Drag and drop your photos and videos here, or click + to browse. Ill talk about expansion tanks in next weeks blog post. I have a collection of ones left over from various projects, and I found one that had the same ID but was a bit thicker so that I could actually feel it above the face of the little plastic insert that it sits on. Comments on posts over 90 days old are disabled, as of 1/7/14. If that pressure gets too high, your water heater runs the risk of exploding! I have the hot water faucets on the kitchen and bathroom (the two longest runs) open to vent the air and "bleed" the lines as I fill the tank, so nothing should be causing a negative pressure situation. Expansion tanks are required when a closed system exists, both by water heater manufacturers and by plumbing codes. see more product details. The tech that came out had helped install our system, but he was not a plumber, so he called one of. These holes will be filled with caulk when the testing is completed. The water heater temperature-pressure relief valve (TPR Valve), protects us from this high heat and pressure. Additionally, Section 608.3 requires an expansion tank when a check valve or backflow preventer is installed on the water supply line: A water system provided with a check valve, backflow preventer, or other normally closed device that prevents dissipation of building pressure back into the water main shall be provided with an approved, listed, and adequately sized expansion tank or other approved device having a similar function to control thermal expansion. but they're a lot more expensive and still a pretty new thing so who knows what might happen with them down the road. 4. This would be for my own home and I am debating whether to just stay with a steel tank or get a price on one of them. Helping You to Do It Yourself! It is a safety device that allows release of pressure or hot water to avoid having the tank blow through the roof of your home. This prevents a water heater from exploding or turning into a missile. Figuring a leak on the outlet somewhere. Bay Area plumbing, heating and air conditioning contractor. 22414 NE Townsend Way
Rheem Marathon Water Heater Vacuum Valve Leaking. This valve is typically on the top or side of your water heater. 
Empty the water heater by draining the bottom and water inside your home. These numbers will be printed right on the valve, or on a tag attached to the valve. This brass temperature and pressure valve is designed to relieve the water heater of stress when water temperatures or pressures are too high. Discharge to the floor, to the pan serving the water heater or storage tank, to a waste receptor or to the outdoors. Depending on your location and home, an expansion tank might be required by code. Get free help, tips support from top experts on 85 gallon marathon water heater turn down heat related issues. other than that, great w/h's. April 16, 2020, 12:57 pm. Made of durable brass and plastic. I took a picture of one. I called the company that installed our geo system as i thought it might be their issue. Email address: General Pacific, Inc.