My wife owns a townhouse style home. Just recently, we noticed the water pump kicks in every 10-20 minutes really briefly (for about 5 seconds) without any water taps being used inside the house. I was able to ignore the odd occurrence for about a week or so, but now I notice slight puddles of water seeping across the kitchen floor from under one of the kitchen cabinets. Luckily the bottom of the cabinet has a removable ~18 toe kick (face plate, cover, whatever) to hide the dead space of the elevated cabinet.
Once removed, i notice the general area where about 16 ceramic tiles are moist-to-puddling wet. After mopping the floor dry, puddles take about 3-4 hours to re-form on the floor, and it must be such a slow process because the water seems to seep along the grooved grout lines and not gush across the face of most of the tiles affected (wet; I hope that makes sense).
I am guessing we have a cracked PVC pipe or mysteriously loosened fitting or joint under the floor, and I am assuming the water pipes throughout the main floor of the house are seated in a concrete bed or foundation, which is giving me a slight headache to think about. I am not sure at this point if removing any of the wet tiles would do me any good as i do not expect I will actually see the pipe; if anything, I might see wet concrete if my suspicions are correct?
I know just about everything I want to know about Thai construction, and that is a whole lotta nothing. I have attempted in the past to deal with local contractors doing various jobs, and have been handily dealt with instead when they simply ignore any and everything I say. So, before I decide to go ahead and make my slight headache even worse by calling in a local contractor, I would appreciate any suggestions or advice anyone might have to share. Likely some things or steps I could and should do before turning to the, ummm, "pros."
It is raining atm which is a good thing so I confirm if rain has any added affect on the problem, which I am not expecting it will. Also the wife is going home for the weekend and as soon as she is gone i plan to shut-off the water from outside, between the water pump and the house, for a few hours when I expect the slow water puddling to cease, justifying my headache.
In the meantime if anyone else has any ideas or suggestions I would appreciate to read them.
BTW, the house is ~20-25 years old.