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78craft

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1

Monday, April 2nd 2012, 5:48pm

bad valve or guts?

I have an older toro system. When I went to turn the system on for the first time two zones are not working. I think it is the valve. I put one of the known working solenoids on one of the none working zones and it did not work. While the none working zone solenoid worked in a known working zone. It is a screw on type enclosure. The solenoid screwed on top of a base and that base screws off of the entire valve. Inside there is a gasket, spring and a long needle. The top of the needle is white. Would I just need to replace the gasket? What else could it be? Last year this would happen one day and the next day it would suddenly work and I just dealt with it as I just purchased the house but would like to get this fixed before summer hits.

78craft

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2

Monday, April 2nd 2012, 5:51pm

another thing

If I manually turn the solenoid the system does come on. Not sure if that matters but want to try to give as much information as possible.

78craft

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3

Monday, April 2nd 2012, 6:31pm

After looking at some pictures my valves are toro flo pros. Like the one in the link below. As I said the solenoid works.

http://forums2.gardenweb.com/forums/load/water/msg051940149121.html

Wet_Boots

Supreme Member

Posts: 4,076

Location: Metro NYC

4

Monday, April 2nd 2012, 6:59pm

Replace all the Flo Pro valves - you won't be sorry.

78craft

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5

Monday, April 2nd 2012, 9:52pm

That would be ideal but the location of the valves would make that project a major PITA. Would replacing the valve inside fix this problem? Also what is the part number I need to replace the guts?

mrfixit

Moderator

Posts: 1,462

Location: USA

6

Tuesday, April 3rd 2012, 12:52am

Here's the diaphragm if you want to try it.
Click on this
Perhaps there's debris blocking the port under the solenoid.

Wet_Boots

Supreme Member

Posts: 4,076

Location: Metro NYC

7

Tuesday, April 3rd 2012, 9:06am

If all it took to make a Flo Pro valve reliable was a new diaphragm assembly, then Toro might still be manufacturing them. They are not, and that says plenty.

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