Please review my plumbing plan

[rocsec1]

Thanks

[Bugs825]

Seems good but I have a couple questions. How much flow are you trying to produce with this? And what type of return pump?

I ask this because you have 45s so you are tring to increase flow,which is great. But, the check valve is going to kill that. So why use it?I never used them becase they have a metal spring inside and take a lot of preasure to open, slowing the flow.

Just some more to think about.

Nathan

[rocsec1]

I am using a triton 3 the check valve have no metal. They are the bulk reef supply recommends

[rocsec1]

Actually as I am thinking abouit it would a hole in the drain line to break syphon work as well as a check valve?

[SGT_York]

This post seems very familiar.

[rocsec1]

I posted in both places to get the maximum amount of input. This the first time I set up a tank this large. Want to get the plumbing right.

[slowwrx137]

Actually as I am thinking abouit it would a hole in the drain line to break syphon work as well as a check valve?

I would do this and not use the check valves. Just make sure the sump can hold all of the water that drains from the display tank when you turn the power off.

If your using the check valves because the sump would overflow when the power goes off. One day if one of the valves fails your going to end up with a flood.

[planedoc]

You want to build your system to be as efficient as possible. The best way is to use the least amount of parts to have the lowest head loss. One thing is the large 90 degree fittings have less head loss than two 45. Here is a good chart.
Remember head loss is not the height but a total of all resistance in your plumbing. Each fitting adds more head pressure.
http://neutrium.net/fluid_flow/pressure-loss-from-fittings-excess-head-k-method/