have you ever had a tank just drip slowly??? er maybe condensation???

[Magnum Man]

in my built in tanks, in the basement, I have a low area in the floor, in one spot under the tanks... I still do occasionally over flow a tank once in a while, and that is the 1st area the water flows to... however it is always damp now / lately / as long as I remember noticing it... it's been at least several months, as I've looked a dozen times for dripping from an air line, or filter, but nothing I can see lately... it's not a floor drain, just a low area on an old cement floor... none of my tanks ( including my RO holding tank appear to be leaking, or any condensate. yet that approximately square foot of floor, always looks damp... in an overflow of tank, a fan can dry the floor in a half hour, yet that one spot remains damp... we have a sump pump under the floor, and that is dry right now, so it's not coming up, from under the floor, and short of an over flow, it's never wet on the surface, just damp enough, that it's a darker color than the surrounding floor... every week, I check for a drip from an accessory, but never find one, it's built in, boards between the bottom of the tank and the floor, but I don't witness anything else wet or damp, so unless that tank is seeping a very small amount, I'm out of ideas, short of removing the side boards under the tank to inspect it... which I suspect is my next option???

 

[Archerfish]

If you eventually rule out your tanks/plants (they can and do wick water) then I would look outdoors. When I was young, we lived in a home that had an underground spring running right under one side of the house and that kept a small area of the basement damp.

 

[gwand]

I once had a subtle leak from wicking on airline tubing and then once from a pothos plant growing aquaponically on top of the tank.

 

[emeraldking]

have you ever had a tank just drip slowly??? er maybe condensation???​

I sure had my moments overhere...

 

[Uberhoust]

You have a lot of open tanks if I remember correctly, condensation from the warm tank water could be condensing on cooler surfaces outside the tank, or possibly on the cement itself but I believe that to be somewhat unlikely. I would check every contact to the cement floor for water, ie every stand leg etc. One last possibility is that you have some plants that are dripping water from their leaves, I have seen this happen before, it can be worse if the plants are suffering from scale, woolly, or other aphid like creatures. Don't envy the search.

 

[Magnum Man]

I may have to double check the pothos vines in that area... those leaves do drip, but not normally concentrated to one area

 

[Uberhoust]

I may have to double check the pothos vines in that area... those leaves do drip, but not normally concentrated to one area

Had a Monstera ruin a section of laminate flooring in my previous home, found the name of the process it is called guttation. Just found out that it had a name today, https://en.wikipedia.org/wiki/Guttation.

 

[Gertrudae]

When the weather changes rapidly from cold to warmer conditions, the granite paving under my balcony, which never gets wet from the rain, becomes damp from condensation. Can you measure the ground temperature with a laser or similar device?

we have a sump pump under the floor

That could be the reason why there is a colder spot there

always looks damp

Or could it be that it only looks wet? Could it be that you spilled something like oil there?

 

[Magnum Man]

 

[Magnum Man]

sorry that one is too dark...

 

[Uberhoust]

From your picture I would say you have a leak somewhere, have water coming up through the floor, or a lot of water has been spilled and there is a low spot accumulating it just under the boards. Another thought is that it is coming under the sill plate on an outside wall. My opinion is it is not from condensation or plants. Removing the tongue and grove from the lower section wouldn't be hard to do and would allow you to possibly find the source of the water. This might be a home issue as opposed to an aquarium issue. Good luck.

 

[Magnum Man]

this s the other side of the tank... dirty, but dry... 2 tanks above this spot, no wet wood, and they don't need to be refilled earlier than the other tanks???