Plumbing flow question

[richiero]

Hello everyone i have a 3/4 inch manifold with 6 outputs controlled by spears 1/4 turn valves only two are in use one to supply a algae scrubber and the other to supply a UV. I supply the manifold with a dc pump that does 2100 gph connected to about 3 1/2 feet of 1 inch ID tubing. I connected my algae with quick connect 1/2 tubing from the manifold at this point i'm only getting 117 gph at the algae scrubber. I f

eel like i should be getting so much more flow to the scrubber.

 

[lapin]

How much are you getting at the UV?
Are both getting the same flow rate?
What is the flow rate thru one of the other outlets with the scrubber and UV turned to the off posistion?
Perhaps the algae scrubber is more restrictive and water travel thru the UV instead?

 

[RocketEngineer]

Crazy thought: Have you checked for air lock in the manifold? Just an idea.

 

[richiero]

How much are you getting at the UV?
Are both getting the same flow rate?
What is the flow rate thru one of the other outlets with the scrubber and UV turned to the off posistion?
Perhaps the algae scrubber is more restrictive and water travel thru the UV instead?

I only have a flow meter on my scrubber not my uv so I don’t know how much flow I’m getting on the UV

 

[richiero]

Crazy thought: Have you checked for air lock in the manifold? Just an idea.

I did bleed the unit it that’s what you mean ?

 

[richiero]

Bump

 

[lapin]

Measure the output of one of the other outlets with a 5 gallon bucket and a timer. Close the UV and scrubber.
It is a start at figuring out the answer to your question.

 

[richiero]

On so fill it up to the 1gallon mark then times 60min x 60 seconds and divide by the time it took to fill ?

 

[lapin]

I would just time it. 15 seconds, 30 seconds or 1 min, then measure the amount of liquid and then X for gph

 

[Fin]

What is the size of the output on the pump? Is it ¾" (the size of your manifold), or something larger, like 1" or even 1½"? Others can chime in here, but you might be better off if you made your manifold the same size as your pump's output and reduce the size to ¾" at each outlet. From what I have seen on these pages, most people use at least 1" pipe on their manifolds.

Also, maybe manually check your flow rate through your scrubber. You may be getting more than the flow sensor indicates.

 

[richiero]

Measure the output of one of the other outlets with a 5 gallon bucket and a timer. Close the UV and scrubber.
It is a start at figuring out the answer to your question.

Will do, thank you

 

[richiero]

What is the size of the output on the pump? Is it ¾" (the size of your manifold), or something larger, like 1" or even 1½"? Others can chime in here, but you might be better off if you made your manifold the same size as your pump's output and reduce the size to ¾" at each outlet. From what I have seen on these pages, most people use at least 1" pipe on their manifolds.

Also, maybe manually check your flow rate through your scrubber. You may be getting more than the flow sensor indicates.

The pump has the 1 inch barb on it the tubing is one inch also. I would consider making a new one. I will check the flow manually also. Thank you.

 

[richiero]

Hello guys anyone know what type of fitting I would need to make a one inch tee a one inch male thread ??? So I could screw and unscrew my one inch 1/4 values on and off? I’m using these valves with threaded unions.

True Union (Double Union) Ball Valve(CD Series) - Dura Flow Pipe Ind. Co., Ltd.

The True Union (Double Union) Ball Valve is offered by Dura Flow Pipe Ind. Co., Ltd., a Taiwan based OEM_ODM manufacturer and supplier of THERMOPLASTIC PIPE, FITTINGS, REVERSE OSMOSIS SYSTEMS, UPVC JIS Pipe & Fitting, UPVC SCH80 Pipe & Fitting, CPVC JIS Pipe & Fitting, CPVC SCH80 Pipe & Fitting...

www.duraflow.com.tw

Thank you

 

[Fin]

This is what I would use, if I am understanding what it is that you are trying to accomplish. This is an adapter where the slip portion of the fitting will slide into the T, converting it to a 1" threaded male.

https://www.pvcfittingsonline.com/1-sch-40-pvc-male-adapter-spig-x-mipt-461-010.html

 

[richiero]

This is what I would use, if I am understanding what it is that you are trying to accomplish. This is an adapter where the slip portion of the fitting will slide into the T, converting it to a 1" threaded male.

https://www.pvcfittingsonline.com/1-sch-40-pvc-male-adapter-spig-x-mipt-461-010.html

Yes that’s what I want to do thank you !!!

 

[richiero]

Yes that’s what I want to do thank you !!!

would this be the same thing ??

Schedule 80 Male Pipe Adapter

Male Thread x Slip. PVC Pipe Adapters for your plumbing needs. Use Male Pipe Adapters when a transition from a threaded female fitting to the pipe is necessary. Common applications include pumps, sumps, and bulkheads. More professional look than white Schedule 40 PVC. ½” Schedule 80 Male Thread...

www.bulkreefsupply.com

 

[Fin]

would this be the same thing ??

Schedule 80 Male Pipe Adapter

Male Thread x Slip. PVC Pipe Adapters for your plumbing needs. Use Male Pipe Adapters when a transition from a threaded female fitting to the pipe is necessary. Common applications include pumps, sumps, and bulkheads. More professional look than white Schedule 40 PVC. ½” Schedule 80 Male Thread...

www.bulkreefsupply.com

No, but it will also accomplish what you want. It just won't fit inside of the T. You would need a short piece of PVC to fit inside of the T and the fitting and the end of the fitting will butt up against the T, but not go inside of it, like the fitting I linked to.

 

[richiero]

No, but it will also accomplish what you want. It just won't fit inside of the T. You would need a short piece of PVC to fit inside of the T and the fitting and the end of the fitting will butt up against the T, but not go inside of it, like the fitting I linked to.

Thank you so much, I’m just trying to order everything from the same place so it all come at once.