JD’s 180g

[project1004]

If you have the old drain system with one drain and return on the two side of the tank maybe the reason why one is coming down faster and stronger than the other one which may need to travel longer to drain. Also if this is the case, float valve won’t work.

I mean for you to put one like this down under the water line well below~

You can also lower the rerun flow rate to slowdown the drain.



Edit: Gate valve and not float valve.

 

[cbj25isback]

More flow for dinos or just use a small power head to periodically blow off your rockwork. Also, get a heater for your mixing vat - salinity, ph can be thrown off by temp, additionally you don’t want to dump a bunch of cool water in your tank, as you’ll stress out coral/fish.

Good luck bud, heading in the right direction!