Typically anything 55g and up will have a tempered bottom glass. Can't be drilled as far as I know.
Automatic water change
- Thread starter Bonne46
- Start date
I suppose you could drill a standpipe or spillover connection to the back of the tank and set it to maintain the level you want.
Like narwhal72 said above, there's no way to perfectly time a system to pump out and refill and still maintain the same level in the tank.
Some my old discus friends had u-shaped pvc hung on the back of tanks with a stop cock at the tank top. Kind of a permanent siphon that is piped (or a hose) to a drain (to the sump in your case). The end in the tank had some kind of mesh or sponge cover to keep out large stuff & the flow can be adjust by how far you open the stopcock so your sump pump can keep up. No pump or filter is needed, just gravity...except to empty the sump well.
Do you have a laundry tub or other tap with hot & cold water? That & a hose for refilling, possibly to another u-shaped pvc to hook over the tank(s). Some had that part piped as well, the serious breeders with many tanks. It took my 1 friend 10 or 15 minutes to do 80 or 90% WCs on his 125g. Most had bare bottom tanks (no substrate).
I was always jealous of their set ups, I hope you can find an easy system. I thought about something similar at my previous house but I had tanks all over the house & a passive French drain (no sump pump, just a 4 or 6 inch pipe out to ? gravel dry well?). I also didn't want to drill holes all over my floors...but maybe for the discus tank if we'd stayed there.
Do you have a laundry tub or other tap with hot & cold water? That & a hose for refilling, possibly to another u-shaped pvc to hook over the tank(s). Some had that part piped as well, the serious breeders with many tanks. It took my 1 friend 10 or 15 minutes to do 80 or 90% WCs on his 125g. Most had bare bottom tanks (no substrate).
I was always jealous of their set ups, I hope you can find an easy system. I thought about something similar at my previous house but I had tanks all over the house & a passive French drain (no sump pump, just a 4 or 6 inch pipe out to ? gravel dry well?). I also didn't want to drill holes all over my floors...but maybe for the discus tank if we'd stayed there.
Use something like the example in the video for an overflow system...he talks about how to set it up for whatever level you want to keep your tanks topped off at. If you're doing a drip system (and not worried about using it as a drain when using full pressure/flow rate from the well), you can probably get away with a pretty small diameter overflow pipe (1/4 or 3/8 pipe). This will keep your tanks from overflowing and dump all excess water into the dump sump. Set up your drip system at whatever rate you want (50% or whatnot, even something ridiculous like 9000% weekly would only be like 70gph on the 125gal, and the small diameter overflow should handle that without a problem). Have the drain pump (to empty the dump sump) hooked up to some float switches to turn it on/off when needed, and you should be golden.
If I understood your posts correctly, and how you want things to work, that's probably how I'd do it.
Your 125 and 75 are most likely drillable. Those sizes are typically made with annealed glass sides. If they have any tempered glass it will be the bottom panel and there will generally be a sticker under the glass that says "Tempered Glass Do Not Drill".
The 37 is a little different as that tank may also have tempered glass sides. Look for the sticker. If you see one don't drill anything.
Andy
The 37 is a little different as that tank may also have tempered glass sides. Look for the sticker. If you see one don't drill anything.
Andy
