Plumbing and setup for an innovative marine 200 EXT

[KStatefan]

@KStatefan "fixed orfice drain" interesting. I googled this but could not find anything. Do you mind explaining a little. Thank you in advance.

Instead of have a gate valve at your refugium have the system designed so it flow the amount you want. So if you want 100 GPH you would figure out what size of pipe you need then use that. I would just use that at the outlet of that siphon.

 

[KStatefan]

@KStatefan "fixed orfice drain" interesting. I googled this but could not find anything. Do you mind explaining a little. Thank you in advance.

Quick sketch I did while in a production meeting this morning. I did not verify the math but the theory should be correct.

 

[KStatefan]

Sitting thru another Teams meeting and did notice a mistake on my unit conversion the correct number there would be 548208 in/hr for V. So in my example the orifice would need to be .232"

 

[garyfri]

@KStatefan that is so awesome and funny. i think i am going to do this with my meeting also.

 

[KStatefan]

@KStatefan that is so awesome and funny. i think i am going to do this with my meeting also.

The teams meeting are so much better then the in-person meetings at least now when somebody is saying the same thing for 30 minutes I can do something.

 

[garyfri]

@KStatefan You seem quite intelligent on the water flow information. So a bean animal drain works with a siphon the main drain, and the other drain has air and water and this sets the water flow.
So on my IM I have a 1" bulkhead (x3) external for the drain. I was going to upsize the 1" siphon drain into 1 1/2 piping. This was based on a youtube video I watched. What I am confused is that I keep thinking that a 1 inch bulkhead is going to be the restrictor of the water flow and using 1 1/2 pipe wont mater but to make me have to reduce the flow of the gate valve to make it seem be comparable to a 1" flow.
Do you gain anything by upsizing the drain from 1" to 1 1/2"?
I understand you want to keep the bigger pipe as long as possible for head loss on the return side, but am I missing anything on the drain side (i.e. gravity pressure etc). I am not sure and you seem like you understand all this.

(pic is before cutting down a proper size). Thank you so much.

 

[KStatefan]

You will gain some flow. The upsize will reduce the friction loss in the pipe. I do not know if the gain would be worth the upsize.

 

[KStatefan]

You would want the 1" part to be as short as possible to see those gains. I would probably not up size if it was mine. If you want more flow out of the 1" you could switch to schedule 20 pvc It has about 25% more cross sectional area then schedule 40.