Noisy OHF - DOLPHIN P-708

[dnsfpl]

i put something in the piping to slow down the flow rate and now filter is very noisy
any method to reduce the sound? or reduce the flow rate?

thanks

[antitrust]

i put something in the piping to slow down the flow rate and now filter is very noisy
any method to reduce the sound? or reduce the flow rate?

thanks

i'm using the same pump as you.. i use a 'rain pipe' that's used for those stackable OHFs and white tape it to the pipe on the end that the water flows into the OHF. helps to distribute the water a bit and allows the water to hit onto my wool, cushioning the impact of the water gushing out.

i then used a small piece of rock to block the outlet hole which is connected to another elbow to further soften the impact of the water that's once again, gushing out from the outlet hole and into the tank.

if it sounds like what you're looking for, i can help by providing you with a picture for a better idea.

cheers.

[dnsfpl]

a picture will be great

after installing rainbar, the inflow rate is too fast for the outflow to handle
tried putting a stopper but is super duper noisy

[antitrust]

here you gooo.

[dnsfpl]

thanks for the illustration

how do you prevent the water from overflowing?

my output cant handle the input

[antitrust]

you mean your water is overflowing without putting anything at the outlet to slow down the rate of displacement? what media are you using? is your media stopping the water from flowing out?

my top layer is the ohf wool, bottom are ceramic rings... did you also remove the meshed tray at the bottom to fit in more media?

[dnsfpl]

i only have wool as a filter media

when i put rainbar, the outflow rate slow down
the water look like will overflow


btw what is the function of ceramic rings?
for bb to grow ah?

thanks

[antitrust]

ya for BB to grow because of its high surface area. lava rocks will work too. hmm.

i suspect your wool might be blocking the area that lets the water seep thru. there's a small hole on the plastic divider that's near the outlet hole.. maybe your wool is blocking it.

is the tray at the bottom still there or you removed it? its kind of elevated so basically water will be not be still at the bottom of the ohf.

[dnsfpl]

here is a pix of my setup



not the "filter" part but the outflowing potion(2nd pix) that is overflowing

tried putting something in the pipe to slow down the flow but super noisy

[antitrust]

hmm i don't quite get what you mean cos the 2nd pic actually looks like its working the way it should be? or maybe i'm just very blind ah

[dnsfpl]

its ok now, i only have the problem when i install rainbar