We had a flood in our crawl space last weekend - not a major flood, but it certainly could have been. Fortunately, it didn’t damage anything major. We just had to keep a fan running down there for several days to help dry things out after my husband used his shop vac to suck up the worst of the water.
What happened? Our second (of many, many we have in this house) brass fitting (a “T” this time) for our PEX flexible plumbing degraded through. It was leaking about 5 gallons an hour by the time the plumber came to fix it. The first one that went bad happened almost simultaneously. That one was a 90 degree fitting in our utility closet in the garage (where the tankless water heater, water softener, pressure vessel, and water filters are housed). The one in the utility closet was easy to find - the second one wasn’t.
How did we find out they were leaking? That was the relatively easy part, due to a serendipitous (in hind sight) construction mistake. When our house was being built we were supposed to have a little pump house outside, where the water booster pump and water pressure vessel would be housed. Somehow, during the hectic last two months of “hurry and finish,” and between “too many cooks spoiling the stew” of the contractors (the general, the plumber, and the well driller), we didn’t get that external pump house. The booster pump ended up in the utility closet with the heater, softener, etc., directly adjacent to our master bedroom. Due to leaks and malfunctioning check valves causing water in the line (which we wouldn’t “diagnose” for almost two years) the booster pump was extremely noisy – every time it came on it sounded like a jet engine was taking off right next to our bedroom. Needless to say, we hated it. We finally had the money to replace it with a different pump last summer (which will be a building fiasco posting all of its own). The new pump, which was quieter, faster was placed in the crawl space below our master bathroom, easily accessible (if you are limber) via a crawlspace access hole in our master closet. You can still hear it come on, but it is a low-pitched machine hum, probably one third the decibels of the old pump.
Because the water pressure booster pump is in the house we can tell if we are using water, or if we have any leaks. A slow leak will be slow to determine – throughout the day water is used, the pressure goes down and the pump comes on. At night, however, we don’t use the water, no toilets are flushed (a pet peeve of mine from apartment living decades ago – DON’T flush at night!!!). If the pump comes on during the night, something is wrong! Over the summer, the pump would come on periodically at night, not often, just enough to be irritating. Since we had a new pump, and we still had a check valve that had to be removed from the system, we figured it was just a quirk of the pump. Well that was fixed in late September. And still, every one in a while, the pump would come on at night. We looked around, checked the toilets (the most frequent culprit of leaks), and all seemed ok. But it got worse. The pump was coming on every night, sometimes twice. That is a significant leak. When we looked in the utility closet, we found what we thought was the problem – the leaking 90◦ fitting. We called the plumber, he came out and looked, said he would be there the next day to fix it, and didn’t show. That’s how they do it down here…. The leak progressed to the point where we would turn off the breaker to the pump before we went to bed – at least we wouldn’t lose sleep when the pump came on. It got worse and the pump was coming on, obviously, during the day when water wasn’t being used. I called the plumber again, said I was worried that it would “blow” and he showed up late that afternoon. Here was our major mistake – he asked about looking in the crawl space, but it was so late in the day, the dogs were going nuts, it was time for dinner, and I felt awful thanks to the prednisone, that we said no, that we would check it later. That night, the pump came on again. What was leaking now? My husband forgot to check the crawl space that day (we were thinking that maybe the pressure vessel was leaking and were drying out the utility closet with a fan to check that), and the next night we flipped off the breaker. In the morning, before we flipped the breaker back on, there was zero pressure in the system. Something was really wrong. He lifted the crawlspace access in our coat closet (yes we have two access holes), and there was the flood – a fitting was leaking like a sieve a few feet to the south. We put a bucket under it, depressurized our system, and waited for the plumber to show up. He replaced the fitting a few hours later, checked out the rest of the crawl space for other leaks (none!), and we are dry, at least for now.
According to numerous postings on the web, our house is a ticking time bomb, with fittings just degrading away, getting ready to blow. One web site says that the degradation is due to zinc being leached out of the fittings due to hard water. We have very hard well water, but we also have a whole house GAC-KDF filter that puts zinc back into the water…. Will that help? Who knows?
So what to do? We can’t afford to replace every fitting until some of these law suits are settled and we find out what financial help we would get. We watch, and we listen. And….I purchased a fancy moisture detector that can accommodate up to 4 wireless water sensors. We’ll put them in the low spots below where clusters of the fittings are and hope for the best. We will also be more aggressive about checking the crawl space. And, luckily, we have our water pump, that can wake me up at night, and will let us know when we have leaks of significance - as I said, a serendipitous mistake that it ended up where we could hear it. And, we will hope for the best.