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A big "sorry!" to those who responded to this thread, months ago. As life has it, I had to leave this project for a while to deal with big family health issues--which I'm still in the midst of. So the floors remain cold. However, I will hopefully be getting back to this very soon and so...

Hey All-- I've got a bunch of Earthlinked DX geothermal units in our house. One of them is a Classic Series that's used for radiant heat in various rooms throughout the house. I love the system, but the company went out of business a couple of years after we did this huge installation--so no...

A belated thank you for the response! It was helpful. I especially like: "I find too many try to make home irrigation into a science. I learned a long time ago all you are doing is dumping water onto the ground. " And great suggestion on adding shutoff valve to reduce/increase pressure. I'll...

I just had a drip system installed to water 9 large green giants, and 4 fruit trees--all on one zone--and planted pretty much in a line. The drip tubing goes around each plant a few times. I looked in the valve box and don't see any kind of pressure reducing valves. Considering our water...

Twenty years with no problems. I can live with that! Do you know if he put the fabric under the top grating, or over the opening in the catch basin leading to the drywell? I think the former sounds a lot easier.

I've got a situation where I need to put in some lawn drains in an area of our lawn where water collects from a nearby slope. We just had a patio installed and then had the whole property graded last year, power raked and finished with topsoil. We also planted lawn. However, we've got a good...

Makes sense. I don't see a calculator...

Until you asked, I didn't know they existed. From what I can see they have a tank that will never leak. That's an appealing trait. So why don't they make a heat pump water heater with a fiberglass tank?

Thanks for the reply-- Those are the factors I've been weighing. Speaking of weighing, part of that question was being asked by my back, since with COVID-19, I don't know how I'm going to get help getting the new tank into place, at 307 lbs. Yikes. Not that a 66 gal tank would make much of a...

I'm installing an AO Smith HPTU-80N hybrid hot water heater and am looking at the pros and cons of adding a thermostatic mixing valve. I see it's recommended for other types of installations, but is there anything that makes using it with a hybrid different? Also, if I understand correctly, the...

You're describing the course of my last week. :-)

Well, on the suggestion of another poster, I turned the valve off that supplies water to the pressure reducing valve. Even with that, the pressure keeps slowly creeping up every day. So I'm now going with your wisdom on the water heater coil being compromised. The good news is that changing my...

As a professional, it pays to be prepared. I'm on my third TP valve with this episode.

So simple! Of course. That was discussed, but I never closed the valve to test it, since the pressure release valve was leaking up until yesterday when I changed it. I've now closed the valve and will keep an eye on it to see what it does going forward. Thanks!

Fitter, looks like you called it. The pressure has been creeping up and the new pressure relief valve did open. I'm going to guess what you meant by "coil in water heater is compromised". I'm thinking you were saying that if the coil is compromised, the higher pressure water from the water...

We've been having our hot water intermittently get cool when taking showers. It can last anywhere from 30 seconds to a few minutes. It may have started around the time our geothermal heating/cooling was installed in 2017. Maybe. In addition to the heating/cooling, I have desuperheaters coming...

I'm actually grateful for having to work through this problem, as it forced me to learn how all these components work together! I always had a cursory understanding of the system, but never really got the whole picture. But as much as I like to learn, I'm hopeful that this episode is done with...

Hey Reach-- I was indeed talking about the relief valve for my boiler system. As it turns out, I ended up changing the pressure relief valve, which had been leaking for a while. Thinking that was caused by an overcharged expansion tank. So far so good. Let's see how it performs over the next week.

I just changed the pressure relief valve, and so far everything's looking good. Fingers crossed. It must have been the excess pressure in the ET for all this time that kept wrecking the pressure relief valves. Simple, in hindsight. Thanks for your help!