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  #21  
Old 08-01-2010, 03:33 PM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Join Date: May 2007
Location: Red State America
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Quote:
Originally Posted by Mike Leary View Post
I've got some skanky systems where I used W*M brass nozzles w/o strainers; worked fine. A cleaning with 18g. wire is all they need.
Dittgo........Those big hole brass nozzles will blow some serious organic crud through them. Impacts, brass nozzles, Imperial valet timers. Doesn't get any better than that.
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  #22  
Old 08-01-2010, 03:37 PM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Quote:
Originally Posted by mitchgo View Post
MPR rotators were made for water conservation.

Since you installed your system from a creek water conservation doesn't apply as if it was city water. Why the hell did you use mpr's???

Yes you should use a mesh filter. A few guys on here should know which model to use for this app.
Very true. The issue is how to limit runoff and not let the crap in the yard get back into the streams. You can limit runoff without using MPs.

A healthy lush lawn filters a heckuva lot better than a yard full of mulch.
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  #23  
Old 08-01-2010, 04:15 PM
irrig8r irrig8r is offline
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Quote:
Originally Posted by AI Inc View Post
Screw the small rotor, they suck. Put in pgp,s or 5004,s with the biggest nozzle your gpm will allow. If its a view flow filter , use a #24 mesh.
I disagree... in my experience RB 3500s do not suck. I carefully calculated flow rates and all on a system that originally had Toro 300s a coupla years ago and picked nozzles accordingly... pressure had decreased in the neighborhood as new homes were added and the 300s were no longer covering.

Two of 37 or so 3500s failed and were replaced after 3 years... one looked like it was hit by an edger. PGMs/PGJs have a worse track record for me.

OTOH, I wouldn't use them with creek water.
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  #24  
Old 08-01-2010, 04:41 PM
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DanaMac DanaMac is offline
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Join Date: Mar 2002
Location: Somewhere in the state of CO
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Quote:
Originally Posted by irrig8r View Post
I disagree... in my experience RB 3500s do not suck.
And I counter, that they do suck As a percentage, they fail more than any other rotor I replace. Besides the T-Bird from many years ago. The 3500 fails way too often, in that it stops turning. Plain and simple. I also find a lot of "blow by" at the wiper seal, making it difficult for the zones to come up to pressure.
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  #25  
Old 08-02-2010, 01:36 AM
Cloud9Landscapes Cloud9Landscapes is offline
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There is nothing wrong with a disc filter, in fact, it is what I would spec for a system off creek water. Disc filters are designed to filter out algae and organic matter where a screen filter is designed to filter out sediments. I would also spec RB PSEB's as a safety precaution.

MP's suck when fed off creek/lake water. A small to medium area rotor, like the I-20 will do a fine job.
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