UV gph?

[Notsolostfish]

Im installing a aquaclear 57 watt on my 200 gallons with a vectra s2 pump. I wanted it for algae, and diatoms as a prevention. I was thinking to add a neptune fs100 but that thing is not hose friendly and its just huge. What are my options here? Do i just yolo it by putting my pump speed at like 40%?

 

[twentyleagues]

Do you have a Neptune? If so you can get a in line flow meter. If not there are others I've seen in the past but no idea on brand or if still around. Other then that as long as you get with in range you should be good so yeah yolo!

 

[Notsolostfish]

Do you have a Neptune? If so you can get a in line flow meter. If not there are others I've seen in the past but no idea on brand or if still around. Other then that as long as you get with in range you should be good so yeah yolo!

I do see how huge its at the bottom of the sump not friendly at all

 

[Lemons]

Neptune FM is a pain, been there done that when i was obsessed with getting the gph just right for parasite control. Now i know theres alot of literature on gph and actual UVC or whatever dosage per exposure time but eventually i just said screw it, as long as the quartz tube doesnt explode, whatever is going through at like 50% is probably not gonna have a good time

 

[vetteguy53081]

Im installing a aquaclear 57 watt on my 200 gallons with a vectra s2 pump. I wanted it for algae, and diatoms as a prevention. I was thinking to add a neptune fs100 but that thing is not hose friendly and its just huge. What are my options here? Do i just yolo it by putting my pump speed at like 40%?

I believe its 1100 gph. manufacture site should have suggested flow rates based on tank volume

 

[Notsolostfish]

Neptune FM is a pain, been there done that when i was obsessed with getting the gph just right for parasite control. Now i know theres alot of literature on gph and actual UVC or whatever dosage per exposure time but eventually i just said screw it, as long as the quartz tube doesnt explode, whatever is going through at like 50% is probably not gonna have a good time

Wait why would the quartz tube explode?

 

[Lemons]

Wait why would the quartz tube explode?

If the flow is too low, the heat from the blub can crack the tube i think??

 

[Notsolostfish]

If the flow is too low, the heat from the blub can crack the tube i think??

I dont know what to do. That flow meter is an absolute beast not hose friendly. Like i have no way to mount it anywhere. I want to run UV right but at the same time what is that dang

 

[Lemons]

I dont know what to do. That flow meter is an absolute beast not hose friendly. Like i have no way to mount it anywhere. I want to run UV right but at the same time what is that dang

You're overthinkin it just slap that puppy in and guestimate your gph with the pump graph + line losses and boom you're good to go!

 

[CoralB]

If you have a five gallon pail with graduated measurements like ones that Home Depot sells that show gallon marks you can use it to set your pump figuring out how long it takes to fill a gallon and then do the math to achieve your gph thru the UV light .

 

[Notsolostfish]

If you have a five gallon pail with graduated measurements like ones that Home Depot sells that show gallon marks you can use it to set your pump figuring out how long it takes to fill a gallon and then do the math to achieve your gph thru the UV light .

My UV is rated up to 325 gallons my whole system
Is only 200 gallons and it says that for algae i need 1066gph. But is that only for 325 gallons? Is that means i need to run leas than 1066 gph?

 

[twentyleagues]

lower flow through the uv will not hurt as long as tank turn over remains in the algae control range. With the numbers you have listed it looks like the manufacturer is saying about 3 times an hour will help with algae. At 200g youd get 3 times with 670gph. With the wattage you may have an effect on some water born things like ick also.

 

[Notsolostfish]

lower flow through the uv will not hurt as long as tank turn over remains in the algae control range. With the numbers you have listed it looks like the manufacturer is saying about 3 times an hour will help with algae. At 200g youd get 3 times with 670gph. With the wattage you may have an effect on some water born things like ick also.

Is it dangerous to like instead of just installing a flow meter that i dont have space for to my vectra s2 to put pump around like 80%? Or like 70%? Or i have to be super accurate? And figure out the exact gph

 

[twentyleagues]

You dont have to be super accurate. I dont know the flow rate of an s2, if that gets you in the ball park you will be good. With a uv you want turn over and dwell time or exposure time vs watts output The larger the uv out put the more turn over you can have and basically achieve the same outcome . Say that was an 80w you could basically double the flow rate through the uv on your tank and get the same results. A lower wattage youd have to dial the flow back more. Of course there is always to small to accomplish anything because of turn over rate. I think how its plumbed into the system is almost as important if not more important then the flow through it. Sump to display after mechanical is probably the best or just display ie out of display back into display opposite sides.

 

[Notsolostfish]

You dont have to be super accurate. I dont know the flow rate of an s2, if that gets you in the ball park you will be good. With a uv you want turn over and dwell time or exposure time vs watts output The larger the uv out put the more turn over you can have and basically achieve the same outcome . Say that was an 80w you could basically double the flow rate through the uv on your tank and get the same results. A lower wattage youd have to dial the flow back more. Of course there is always to small to accomplish anything because of turn over rate. I think how its plumbed into the system is almost as important if not more important then the flow through it. Sump to display after mechanical is probably the best or just display ie out of display back into display opposite sides.

Obviously i cant have it in the display. So its going to be sump skimmer area to the return pump area so yeah. My s2 gph is 1400gph max

 

[twentyleagues]

Obviously i cant have it in the display. So its going to be sump skimmer area to the return pump area so yeah. My s2 gph is 1400gph max

50% max then. Your not using it to it's full potential with your configuration. Sump chamber to sump chamber even if up stream to down isnt great. Can you incorporate it into your return? Either by turning down your return pump and adding the uv as a secondary return?

 

[Notsolostfish]

50% max then. Your not using it to it's full potential with your configuration. Sump chamber to sump chamber even if up stream to down isnt great. Can you incorporate it into your return? Either by turning down your return pump and adding the uv as a secondary return?

So if i dont add it to my return its not going to be effective? I have a manifold on my plumbing can u plumb UV to it on a seperate pump instead of return?

 

[Notsolostfish]

50% max then. Your not using it to it's full potential with your configuration. Sump chamber to sump chamber even if up stream to down isnt great. Can you incorporate it into your return? Either by turning down your return pump and adding the uv as a secondary return?

Thats my setup how can i run the UV with my return line? Any idea

 

[SPS2020]

Can you show a picture of your return pump configuration? If you look in my build thread, you can see how I plumbed my 57w AUV. Ideally you would want it off the return pump into your DT.

 

[Notsolostfish]

Can you show a picture of your return pump configuration? If you look in my build thread, you can see how I plumbed my 57w AUV. Ideally you would want it off the return pump into your DT.

My return pump hose is the white one going to the return pump. My uv mounted at the back. brs videos shows that u can add the UV to pull from the skimmer chamber to the return chamber. I mean how bad its?