Hammering effect throu the cycle
 

I have a hammering effect as my O/M-4 runs throu its cycle.
I run it with a Sequence Baracuda . O/M input is 2" outputs 1 1/2" I run the drum 1&3 , 2&4 Do you have any ideas as how this problem can be resolved?
Thanks in advance
Steven (AKA) Madkeenreefer.

What do you have on the end of the outlets in the tank? plumbing pics always help.

Paul

It's a very common problem. Give Paul a call. I have the same issue running a hammer head pump. Paul has made a custom drum for me that works 100%
what he does is bevel out the drum so that water follows out of all ports all the time but not much

J

I had the same thing happening to me once and found that it was caused by some sand that got down into the drum. Took out the drum, rinsed it clean and flushed the body, put the drum back in and that was that. Just my experience but might not be your issue.

Good Point Grizz I guess I junped a few troubleshooting steps

J

thanks guys,
Jason I was thinking that it might have had something to do with the ports opening and closing. Before I give Paul a call I will just open and clean out the drum (the system has no sand but I guess it could be some pvc cuttings that have gone throu the system during the fresh water test.

Ok removed unit, no detris to speak of and it was in need of grease I reinstalled it and found that it still was hammering .
next step I guess is pics will get em up soon.
Ps it is a 7yrs old unit do these things run for life or degenerate over time?

Mine started hammering or I guess a better description would be skipping. Where the drum would not turn and the magnet drive would bang when it would turn and the drum wouldn't, after 5 years. I found that the drum was worn and needed replacment. All was good after replacment

J

There is nothing to go wrong that cannot be fixed there are 10 year old units still chugging away., the fact that you have loc-line on the outlets is the main reason for the hammering, you simply cannot force that much water through the orifices that you have, you are trying to push 4300 gallons through just two 3/4 holes, you must replace these with 1" to function properly, do this and your issue will go away.

Paul

The first test I did was to remove the loc line! I now only have the 1" returns dumping straight to the tank .
Still had the hammering after the removal of all loc line.
I continued to trouble shoot . Cleaning & greasing the magnets has not stopped the hammering either
I assume that I have to reconsider my plumbing setup this is why I said I will post pics soon, as to give some help to solve my issues.

You won't have to redo plumbing :)

As mentioned a pic of the plumbing hope it helps here.
[IMG]http://i318.photobucket.com/albums/m...r/IMG_3953.jpg[/IMG]

It would be nice to have had a ball valve between the unit and the pump, the plumbing looks fine, however it may be restricted later depending what bulkheads you plumbed into, yes this is an older unit and the wet side magnets may be giving you an issue, it is an older style drum and the newer version is better suited to the pump you are using.

Paul

Thanks for the confidence in the plumbing as I would like to not have to change it out

I would like you to do a couple of tests for me, give me another call when you get a moment.

Paul

Resolved
 

Just an update, as I have returned to work so have I to my tank :lol:
After talking with Paul (very knowledgable on his product) we fixed my hammering problem with no new parts and I even have been able to return the loc line onto the system .
Very happy and would just like to take the time to thank again, Paul from Oceans Motions for his after sales service.
PS.. I brought this 4-way second hand and its over 7yrs old and Paul did'nt bat an eyelid to roll up his sleves and talk out a solution.
Paul,
Great product and even better service BRAVO.
Thanks again
Steven Maxwell AKA MADKEENREEFER

So what was the problem / solution?

Grizz,
The solution was to relive the system of the sudden closing of the ports whilst still handling the large amount of flow from the pump, for this I added a ball valve (which ended up being a blessing for maintenance) but is still left wide open so im not having to throttle back the pump either :).
The key was to open the spool to relive the back pressure kinda like bleeding off the extra back pressure throu the closed ports, worked a treat.

Cool sounds like it was a simple fix. I am planning on putting multiple loc-line on all my return's and hope it works well.

Be sure to do it correctly, split the inlets with 1" tees and then reduce to locline, do not use locline splitters

Paul

That is the plan for sure Paul :biggrin: