Need helpFirst Test after plumbing??

[Crystal.Clear]

Helloo
i finally finished plumbing my Tank and going to do first water test tomorrow.
i got 75 gallon tank with Fiji cube 20 sump.
just wondring whats the best way to test the tank and sump?
i saw this video tonight:


he said fill the tank till water flows into the sump, then fill the sump almost full then start your return pump and mark the water level of the sump.
is that best way for leake and water test for the first time?

 

[reef lover]

For doing a leak test that will be fine. You'll want to fine tune the water level in the return pump chamber to be just an inch or two above the pump. Giving you as much space for water coming back from dt. I also like to drill a hole in my return lines just below running water level so when powers off the siphon breaks immediately.
Good luck!