Closed loop

[Doug Dahlke]

Here are some pics of my closed loop system. Sirocco PEV2 vac with a Water Treatment Tech filter system. There are three polishing filters that go on the LD30 that I had off in the pictures.

[David O'Connell Jr.]

Nice, what that set ya back?

[One Tough Pressure]

Put a 1/2" ball valve on that pre filter for the LD30. It makes for a quick and easy way to drain the sediment.
That red fish net looking stuff was more of a bother than a help. Removing it will not hurt anything, and it will not clog as quickly.
Due to the small orifice of the spigots that they installed, I had flow problems. I switched them out for 3/4" full port ball valves.

[Doug Dahlke]

Originally Posted by Reef

Nice, what that set ya back?

Thanks. The vac, filter unit, generator to run it all and vacuuming surface cleaner ran about $8,000.

[Doug Dahlke]

Originally Posted by One Tough Pressure

Put a 1/2" ball valve on that pre filter for the LD30. It makes for a quick and easy way to drain the sediment.
That red fish net looking stuff was more of a bother than a help. Removing it will not hurt anything, and it will not clog as quickly.
Due to the small orifice of the spigots that they installed, I had flow problems. I switched them out for 3/4" full port ball valves.

I'll go ahead and pull the mesh out. I did have them install 1" pipe at the inlet side. I have yet to run this all in the field but I did test the flow from the vac sump to the filter tank and from that to the feed tank. Things flowed pretty well. The other problem I noticed was that when you install the filters there is no way to insure they line up with the fittings at the top where the blue bowl screws in. I took some filter material used in KOI ponds and cut a strip about an inch wide and the circumference of the filter bowl. That fit perfectly around the filter and centered it in the bowl while still allowing plenty of water flow. I'll get some pics of what I am talking about and post them.

[One Tough Pressure]

That prefilter is made for 2" lines. They use reducers on the LD30 and mine came with 3/4". Did they change the back side as well?

Inside the unit on the left where the line flows to the bottom thru the plates, mine had a stainless reducer that went to 1/4" and back to 3/4" again. I was never able to get an answer as to why so I removed mine. Should you have any inlet flow problems, you will want to check that for sludge build up.

It takes a little patience to get the blue sump bowls back on, but they will fit fine without the fish filter. The fish filter may help prolong the life of the filters though.

My number one complaint on this unit is that the polishing filters always seemed to clog up fast. I bypassed them from the other spigot and left it at that.

Flow testing is a chore. With the unit clean, it all works fine, but in a real ield condition with all kinds of muck in there, the flow will reduce. Rinsing the filters on a regular basis will keep things moving better.

The wayne sump on the inside of my LD30 was rated for 90 gpm, but after they choked it down to 3/4" hose and then thru the filters, it made for a lot of head and sumps do not like that. I was going to replumb the sump hose and then use a pleated pool cartridge in place of the blue filters, but never got around to it. I have all the stuff, but I generally do not recycle water anymore.

[Doug Dahlke]

I did buy one pleated filter. Thought it would be a good test to see if they last longer with cleaning and reuse. They are considerably more expensive. I hope the filters don't clog too fast but that is what I hear about a lot of these type units. The account I need to recycle for I have been doing for a year so it is maintained regularly. I also use a blower to get rid of loose dirt and debris first.

[One Tough Pressure]

The blower will help considerably especially if you take time for "crack" dirt.

Pleated filters have more surface area so they will last longer. As far as the blue polishing filters go, I would stick with string wound, vs spun Poly, as they will last longer.