Deltec is the bomb
Deltec is the bomb
So I know some of you are OCD when it comes to your tank maintenance and routines. I'm a lazy reefer. With quantity and automation, I do my best to keep my tank maintenance to a very minimal schedule.
If they would finalize these robotic glass cleaners I could leave my tank totally untouched for weeks at a time. Because other than cleaning the glass there isn't too much I do regularly to my tank. Carbon get's changed once a month, Auto feeder gets filled every 2-3 weeks. Kalkwasser every 3-4 weeks. C02 every 8 weeks. Calc Reactor every 12 weeks. Water changes when the seasons change.
Now when it comes to my skimmer I don't touch it often. I have a Deltec 702 that has been running for about 9 years I think. All my equipment is outside the house, built inside counters and cabinets on the back patio. So when the countertops are down everything is out of sight and out of mind. My RO waste water dumps into my skimmer cup, and then that drains to a sewer line.
So without having to dump a skimmer cup, I may go 4-8 weeks between cleaning the skimmer. In the 9 years I have had my Deltec skimmer I have had 1 pump lock up. There was an electrical fire that scorched the side of the skimmer and burned up the Eheim plugs. I chopped the charred wire, put some new plugs on the pumps and away they went.
In the last 9 years I have probably pulled the Eheim pumps off the skimmer maybe 5-6 times to clean. Once in the past year I pulled the skimmer out of the cabinet and let it run vinegar for a few hours to clean everything out.
I bought a new ozonizer about 8 weeks ago (rated at 650mg/hr, and since I started using it my skimmer pulls out just solid black gunk. And the stuff is so thick that the skimmer usually has black foam coming out of the top of it.
I am hosting the local reef club meeting on Saturday afternoon so I figure I might do some system clean up. Tonight I take off my skimmer cup to clean it. Before I put the cup back on I reach in and clean out the neck, and just for giggles I reach into the skimmer and discover one of the pumps isn't pumping. I check the pump and it's warm but not hot.
So I drain the skimmer and pull the pump off and the impeller is frozen in place. I get some pliers and carefully try to remove the impeller and it won't budge.
So I get a little more forceful and I get the impeller to grind about ¼ turn, but I can't pull it out.
I pull off the second pump and it looks fine. So I pour some vinegar into each pump.
I figure for the cost of a Deltec pump and an impeller I might as well buy one of the new fangled skimmers with a low energy DC pump.
After an hour of not finding any great short fat skimmers to fit under my counter, other than the $2k or $3k Deltec I decide to go check on the pump.
I go downstairs and the impeller slides right out of the pump. Calcium built up in the pump and bound the impeller. But it must have gotten real hot because there is a ¼" ring around the top of the impeller that is melted.
I take a razor blade and start slicing the burnt plastic off the impeller, giving it a shave to make it smooth again. A few minutes later I go pop the now somewhat smooth impeller into the pump, plug it in and Voila the pump spins!!
I put the pumps back on, and after hand tightening the second pump, I remember I forgot to check the O-Rings. So I pull off the second pump and the bottom O-ring is missing. So I'm out with the flashlight looking all over the ground, the counter, inside the cabinet, and I can't find the F'ing O-ring.
So now I am ****ed off. So I decide I better check the first pump for O'rings, so I take it apart and low and behold on the bottom union, I have two O-rings sandwiched into the union.
Bing Bang Boom, and my abused Deltec skimmer is back up and skimming !!!
The thing is a mule!
Dave B
PS -- Tomorrow I will decide whether it's prudent to buy a new impeller or look for a new more efficient skimmer.