HOG2 Silenced

[atoll]

One of the things people say about the HOG's are is that they are noisy, well not anymore. I bought a cheap CO2 bubble counter and took a length of airline from my HOG2 to it. The result, completely silent.

http://i541.photobucket.com/albums/gg378/lesmelling/Aquareef%20300/20150329_114040_zpsmavbydvw.jpg



7871

[atoll]

Slight alteration. I inverted the bubble counter as it was filling with water spitting out the tube which resulted in the counter filling and the noise returning. By inverting it the water drains and its quiet again with the bubble counter working as a silencer. Sorry about the quality of the pic but I am sure you get the idea and what I am talking about.
http://i541.photobucket.com/albums/gg378/lesmelling/Aquareef%20300/20150330_183600_zpsqpwa25kx.jpg



7872

[Devs]

Genius !!

Just to clarify...you take airline from pump into the bubble counter then from bubble counter to hog or whatever type of uas you're using ?

[atoll]

Genius !!

Just to clarify...you take airline from pump into the bubble counter then from bubble counter to hog or whatever type of uas you're using ?
If you look at some in fact most skimmers they use something similar to reduce the noise the skimmer makes so this works on a similar principle. I fitted an airline connector into the top of my HOG then lead an airline from it to the CO2 bubble counter which I now have inverted to prevent water build up in it. You can still use it this way for every now and again you would have to empty the water out, once every 24 hours approx. By inverting the bubble counter the water rains out naturally back into my sump. The CO2 bubble counter cost me less than £2 UK or about $3 US delivered from china and works a treat.

[atoll]

A few days on and i'm delighted with this little mod as it's completely silenced the spitting etc sound I had before and at just a couple of pounds/dollars.

[SantaMonica]

If you can post better pics of it, I can include it as a recommended mod.

[atoll]

This is the bubble counter but as said it's best used inverted as I have found.
http://i541.photobucket.com/albums/gg378/lesmelling/Aquareef%20300/_57_zps8rhfzcqe.jpg



7873

[SantaMonica]

So all the sound was coming out of the top hole?

[atoll]

So all the sound was coming out of the top hole?
As I had my HOG2 completely submerged the bubbles coming out of it made quite a loud noise. If I had my HOG2 with the top slightly exposed to the air I got a loud spitting sound. Using the bubble counter the way I have has silenced it.

[Bacon]

Still confused - is the bubble counter connected to the top hole of the HOG? Where the air comes out? If so, why the airline? why not just connect it right above the HOG?

[atoll]

Yes I connected it to the top of the HOG via a short length of airline. I don't think it will connect directly as the outlet pipe would foul on it but I don't see why it wouldn't work if it was connected directly. I was already experimenting with airline in an attempt to reduce the noise so it was attached and I just connected it to the bubble counter. The loop in the airline may also help in silencing. Also I used the sucker the bubble counter came with to attach to the glass in the sump to secure it although you could secure it to the HOG. Depending how your sump or tank is made directly attaching the bubble counter may foul on a strengthening bar above it.

[SantaMonica]

Yes when underwater (where it would normally bubble), anything attached to it would help because it stops the bubbles and brings the air above the surface. But the same thing is done by just sliding the unit up so the exit hole is above the water. If you can, of course.

[atoll]

Yes when underwater (where it would normally bubble), anything attached to it would help because it stops the bubbles and brings the air above the surface. But the same thing is done by just sliding the unit up so the exit hole is above the water. If you can, of course.

I tried that but you I had to lift it up further than I wanted to stop the spitting sound as the air also pushed out water with it. There is no such problem with the way I have solved the problem and of course I can fully submerge the HOG without the bubbling noise.

[atoll]

Quick update. My silencing idea is working a treat. My HOG2 is now completely silent not a gurgle bubbling or spitting sound anymore just complete silence.:cool:

[Devaji108]

Nice! can you post a video I am making a DIY upflow and would love to hear the difference. :D

[atoll]

Nice! can you post a video I am making a DIY upflow and would love to hear the difference. :D
I could but it would be pointless as there is nothing to hear and my skimmer although far from noisy would be all you hear.

[Devaji108]

well my shell has a few holes in the top...guess i'll have to see how it sounds once up and running. the tank will be in my room so if it in in fact bubbly or noisy I will defiantly apply your mod.

where did you get the bubble counter?

[Devaji108]

OK never mind amazon has them...haha I have never heard of such a thing guess it must be a FW planted thing. :)

[atoll]

OK never mind amazon has them...haha I have never heard of such a thing guess it must be a FW planted thing. :)
Got mine off eBay. They are not only used for FW but for calc reactors in SW.