CPR Bak Pak 2 issues

meowzer

Moderator
I'm telling you......strike me in the head or something.....talk about crap luck

I didn't get home till after 7 tonight.....my CprBakPak2 was not making air bubbles....pump was running though....so I figured it needed a cleaning....NOT WHAT I wanted to do tonight....BUT I DID
In the process I BROKE the IMPELLER
...SO let's just say.....I took apart a maxi-jet....traded the impeller "rod" and YAYYYYYY that works
Does this make me a DIYer

I think I should order a spare impeller...just so I have the right parts though
 

meowzer

Moderator
Originally Posted by 2Quills
http:///forum/post/3284722
DIYer, mmm...maybe. Mrs. Mvcgyver...heck yeah!!!
LOL....I told you....I'm becoming the spare parts queen.....I have 2 MJ1200, 1 Mj400, 1 powersweep 228, 1 rio something or other, 2 ca3000 pumps, attachments for all the above, various sizes of hose, 3 seaclone bodies, etc etc......but never what I really need....altho I got lucky tonight.....HAHA...if you can call that lucky

OH...and a room full of bulbs.....IDK what to do with them
 

acrylic51

Active Member
Originally Posted by meowzer
http:///forum/post/3284715
I'm telling you......strike me in the head or something.....talk about crap luck

I didn't get home till after 7 tonight.....my CprBakPak2 was not making air bubbles....pump was running though....so I figured it needed a cleaning....NOT WHAT I wanted to do tonight....BUT I DID
In the process I BROKE the IMPELLER
...SO let's just say.....I took apart a maxi-jet....traded the impeller "rod" and YAYYYYYY that works
Does this make me a DIYer

I think I should order a spare impeller...just so I have the right parts though
You should have thrown it out and told your husband you need another new skimmer........
 

meowzer

Moderator
Originally Posted by acrylic51
http:///forum/post/3284758
You should have thrown it out and told your husband you need another new skimmer........

LOl...But I would have had no skimmer for a week while I researched and then ordered....you know what though....he would never notice, and at this point he really could care less....LOL...he'll make up for it when hunting season comes around

I have only had this skimmer since April 2009....surely it will last longer

It's on my 29G mixed reef
 

meowzer

Moderator
Originally Posted by nikeSB
http:///forum/post/3284766
always somethiing huh meowzer lol
LOL....doesn't it seem that way....is it just me...or am I the only one who posts about the issues

I get soooo much helpful info here though
 

meowzer

Moderator
Anyone know where to get an impeller for this dumb thing????? The pump is an Accela...and I can not find the impeller :(
 

meowzer

Moderator
OK...I got my new Acella pump today, and I also ordered the bubble diffuser....
...what the heck is this thing supposed to so...Now I have a $22 clear plastic box, with a hole in the bottom, and a sponge in it over the outflow of the skimmer
I still have bubbles

The only difference I have noticed so far is that there are not as many bubbles popping out of the water....
I have not put the new pump on yet...BECAUSE....WELL....BECAUSE I don't feel like it yet LOL
I'll tell you what....the skimmer SKIMS....BUT...I can't take these bubbles :( 15 months.....
 

2quills

Well-Known Member
I think I read somewhere about some people making modifications to them that really worked. I'll see if I can find it again.
 

meowzer

Moderator
Originally Posted by 2Quills
http:///forum/post/3287783
I think I read somewhere about some people making modifications to them that really worked. I'll see if I can find it again.
Thanks......I have bought the internal bubble diffuser...and now the external one
.....Like I said it SKIMS great...I just can not tolerate the bubbles :(
 

2quills

Well-Known Member
Yep...new skimmers and new sumps lol.
Nah...I dunno...maybe you can try and add some more sponge to the diffuser or something. I can't seem to find what I was talking about before, I think it's gone...like my mind, but that's nothing new!
 

meowzer

Moderator
Originally Posted by 2Quills
http:///forum/post/3287805
Yep...new skimmers and new sumps lol.
Nah...I dunno...maybe you can try and add some more sponge to the diffuser or something. I can't seem to find what I was talking about before, I think it's gone...like my mind, but that's nothing new!
NO WAY/......I am not putting a sump on the 29G...or the 54G...just not doing it.....
I will just have to deal for now :( I don;t have the patience to research anything else....

Almost makes me miss my Seaclones....LOL...ALMOST
I still have all 3
 

posiden

Active Member
Not sure if you've seen this. This is cut from CPR's site. It seems you need to increase the amount of air. Hope this helps.
Here is their link.
http://www.cprusa.com/forums/viewforum.php?f=1

Since the release of the Bak-Pak, seven years ago, we have sold around 70,000 units. Through surveys and monitoring of requests for technical support, we have found that of all these skimmers, 95% work without any problems from the moment they were plugged in.
Of the other 5%, most of them have problems with bubbles. There is quite a challenge in designing a hang on the back protein skimmer. We are attempting to create as many bubbles as possible to create an efficient skimmer and to do so in as small a unit as possible. At the same time, we are trying to eliminate the bubbles before the water enters the tank.
There are two types of bubbles that may be encountered. The first type of bubbles is large air bubbles. These are caused by turbulence when the water enters the tank. Since they have no ill effect on the tank or its inhabitants, we are much less concerned with this issue. Raising the water level in your tank will resolve this issue for most users.
The other type is micro-bubbles. Micro-bubbles can cause problems in a tank including the unwanted growth of algae and even possibly illness in fish. Below are the most common problems and solutions for micro-bubbles in the Bak-Pak. The Bak-Pak units have what we call a "break-in" period of 48 to 72 hours. There is a thin coating on the acrylic that needs to wash itself off of the unit. For this reason, it is recommended that the unit is rinsed before being placed into use. Once the unit has been running for 72 hours, the bubbles should cease.
If you are one of the few that have another type of micro-bubble problem, following are the most common problems and fixes (keep in mind that the issues described below are not exclusive to the Bak-Pak. These issues will affect performance in all hang on the back skimmers):
There is a common belief that the more air put into a skimmer, the more air escapes back into the tank. This is incorrect and in fact, the opposite is true. When too little air enters the Bak-Pak, the water begins to flow faster and may push the bubbles through the unit and into the tank. When more air is introduced into the Bak-Pak, the water flow slows, keeping the bubbles in the desired chamber. The slower flow also allows for more contact time for the bubbles and nutrients, increasing skimmer efficiency. To increase air flow into your Bak-Pak, remove the muffler from the end of your airline. This may immediately correct the problem. The downside of this fix is that it may make the unit much louder. Simply extend the airline so that it is 2 feet long and the sound should decrease again.
Excess micro-bubbles are always caused by high surface tension in a tank. The most common causes of high surface tension are high salinity and the use of supplements, conditioners and even some foods. However, there are also other factors that contribute to a change in surface tension. Along with salinity and chemicals, low temperatures and a high bio-load will also contribute to a high surface tension.
Check your salinity and make sure that it is between 1.021 and 1.023 In most cases, unless your tank is well above 1.023 (1.027 and up), this will not make an enormous difference.
You'll want to limit the use of conditioners and supplements by placing them in the water only as often as is necessary. When you do place supplements or conditioners in your tank, either shut down your skimmer for 24 hours, or expect micro-bubbles.
When all of these fixes fail, we recommend the use of our external bubble trap.
 
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