H2 overflow noise help
- Thread starter Torchia32
- Start date
It's actually simpler than it really looks.
Yes, the point to the diagram was to give you an idea of the spout/tube on top of the pipe - you can ignore the rest. Also, do you have any valves on your drain going to the sump? I'm assuming no?
I have no valves on the two drains. I could install them if they will help. By closing the valves wouldn't that reduce flow though?
I believe it may, but with two 1.5" pipes, it may not be an issue in terms of turnover. It also depends how your PVC is run and the number of angles that you may have. On mine, I do have to close the gate valve about 45% as fully opening creates a loud water squishing sound. It's not at all uncommon to have valves on your drain pipes. Good for maintenance, but also to control the flow that contributes to the noise too.
I would start with the air tube as was suggested. If that doesn't reduce/eliminate most of the noise, then you may want to consider the ball or gate valve.
I would start with the air tube as was suggested. If that doesn't reduce/eliminate most of the noise, then you may want to consider the ball or gate valve.
You have noise down the drain lines because air is being drawn down the drain along with the water. A gate valve is used to very closely match the rate of drain to the rate of output from the pump. When these 2 rates match, the drain line stops drawing air in, and laminar flow is achieved--or "full siphon". That is what makes a drain silent.
Before you constrict your drain line with a valve, I would stongly advise you to have a backup drain line or you'll eventually flood your house.
Do yourself a favor. Read all about Herbie style overflows, have a plan, understand the flow rate of your pump compared to the rate that your drain lines can drain water, and have a dry/almost dry backup drain that can handle the full output of your pump.
Unless this tank is in your garage and you don't care if it floods.
Before you constrict your drain line with a valve, I would stongly advise you to have a backup drain line or you'll eventually flood your house.
Do yourself a favor. Read all about Herbie style overflows, have a plan, understand the flow rate of your pump compared to the rate that your drain lines can drain water, and have a dry/almost dry backup drain that can handle the full output of your pump.
Unless this tank is in your garage and you don't care if it floods.
Having a back up is good practice whether or not your constricting flow with a valve. perhaps increasing the chances of overflow but it still there. There's also the debate of have completing dry or trickle is ok stand-by on the topic of backup.
Canisters? But what's the fun in that? j/k 
I just watch the durso video. In my experience if your primary drain for the Herbie is sufficiently below the waterline to create continuous siphon, it is as silent as ay properly implemented durso standpipe. I think where the noise is introduced is when you have the trickle stand-by (i.e. second drain). As the return fluctuates, it increases the waterflow to a point sometimes a bit more than just a trickle - this results in increased air into the standpipe. I occasionally hear this at night when fans aren't running and other background noise. But overall, it's just as noise free as the durso approach in this video. Just sharing as there are options to have a quiet overflow.
This is a picture of my Herbie awhile back. I've since cut the primary drain (with strainer) by a couple inches to eliminate the swishing sound. I then also cut my second trickle drain a bit as well. I left the third as is.
I just watch the durso video. In my experience if your primary drain for the Herbie is sufficiently below the waterline to create continuous siphon, it is as silent as ay properly implemented durso standpipe. I think where the noise is introduced is when you have the trickle stand-by (i.e. second drain). As the return fluctuates, it increases the waterflow to a point sometimes a bit more than just a trickle - this results in increased air into the standpipe. I occasionally hear this at night when fans aren't running and other background noise. But overall, it's just as noise free as the durso approach in this video. Just sharing as there are options to have a quiet overflow.
This is a picture of my Herbie awhile back. I've since cut the primary drain (with strainer) by a couple inches to eliminate the swishing sound. I then also cut my second trickle drain a bit as well. I left the third as is.
