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Old 07-12-2013, 01:59 PM
bcg bcg is offline
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Join Date: Mar 2005
Location: Tx
Posts: 1,774
It really depends on the valve you're talking about. The Hunter SRV seems to only last about 5 - 10 years, others last longer and some less. I've found that the valves without any plastic in the diaphragm are more durable than those with it. The plastic parts (like the ring on the bottom of the SRV diaphragm) are always the first to go.
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