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Old 08-16-2011, 11:18 PM
MEXANDME MEXANDME is offline
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Replacing A Large Rotor With A small One Question

For example, replacing a RB 5004 with a RB 3504.

Any tricks to use in order to not have to replace the 3/4" FP fitting with a 1/2" FP fitting, i.e., some type of bushing, 3/4" female x 1/2" male cut off riser, etc?

A 3/4" female x 1/2" male MARLEX would be nice!!!

Thanks,

Mex
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Old 08-16-2011, 11:34 PM
WalkGood WalkGood is offline
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Bushing.

Funny pipe swing joint.
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Old 08-16-2011, 11:44 PM
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mitchgo mitchgo is offline
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why replace the 5000 series to the 3500 in the first place?

When ever I bushing down

In this instance if you can't cut out the pipe to install 1/2 swing joints then I would use

3/4 tt coupler
3/4 x 1/2 tt bushing
1/2 nipple closed
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Old 08-16-2011, 11:52 PM
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mitchgo mitchgo is offline
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Only thing I could find was a 3/4mpt x 1/2 fpt street el which is the opposite.

I did find a stainless steel 3/4fpt x 1/2 mpt street el for $8 tho
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Old 08-17-2011, 02:03 AM
Kiril Kiril is offline
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http://www.hunterindustries.com/prod...s/sjspecs.html
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Old 08-17-2011, 08:49 AM
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Sprinkus Sprinkus is offline
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3/4 fipt x 1/2 mipt riser extension. (IPT adapter)
Spears #446-074

If 3/4" female in ground then use a 3/4" x 1/2" reducing nipple.

Last edited by Sprinkus; 08-17-2011 at 08:57 AM.
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Old 08-17-2011, 08:57 AM
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DanaMac DanaMac is online now
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Ok - what am I missing here? Isn't it still female thread at the fitting? And female thread at the head? If you are not using swing pipe ells or a swing joint, and are just doing a riser, why won't a 1/2"x3/4" MxM work? Or they make 1/2"x3/4" cut off risers, not that I use these, but they are available.
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Old 08-17-2011, 10:55 AM
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AI Inc AI Inc is offline
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Replace it with a 5000, throw the 3500 in the trash where it belongs.
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Old 08-17-2011, 11:35 AM
MEXANDME MEXANDME is offline
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Most of the work that I do is repair / maintenance; not new installs.

The only time I downsize a rotor is when it should have been a smaller rotor in the first place. I run across many that are too big and chocked all the way down.

I also change to the smaller rotor if the landscape has changed.

Thanks for all of the replies. Sprinkus, I ordered some of the Spears 446-074.
Thanks for the link.

Thanks again to all,

Mex
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Old 08-17-2011, 11:41 AM
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DanaMac DanaMac is online now
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Mini rotors are awful. I won't even stock them. Poor reliability, and I hate their spray patterns. I can usually get a 5000 to work with the LA nozzles and knock down the spray. The 3500 also has too much blow-by at the wiper seals, quite often causing the zone to not come up.
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