Irrigation timers for high frequency fertigation

Currently providing eight watering events per day via electronic timer. Timer runs an Active Aqua Submersible Water Pump, 400 GPH. I would like provide more than eight watering event, but I am limited to eight due to timer only supporting eight events. How can I get more than eight watering events?

Change the timer. I bought a hubspace controllable outlet. I have one outlet set for one event every hour.

The digital timers I've used with an app usually can program minutes but not seconds.. Has anyone found a non-commercial timer that can program multiple cycles(over 12) with programmable seconds?

Edit: think I found a timer but I haven't used it or tried to program cycles with it.. it claims to have 19 programmable on/off cycles. Nice!

k0rps said:

The digital timers I've used with an app usually can program minutes but not seconds.. Has anyone found a non-commercial timer that can program multiple cycles(over 12) with programmable seconds?

Edit: think I found a timer but I haven't used it or tried to program cycles with it.. it claims to have 19 programmable on/off cycles. Nice!
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That looks like it might fill the bill.
Just a little lost as to what you would run for seconds?

The other way would be to do it with a Rasberry Pi setup

formularacer said:

That looks like it might fill the bill.
Just a little lost as to what you would run for seconds?

The other way would be to do it with a Rasberry Pi setup

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The ability to control the feed/water to a finite amount per irrigation. For instance, feeding a plant using (2) 0.5gph PC emitters for 1 minute is ~63ml, 1.5min is ~95ml ect.

You could also run a timer with minutes, just wouldn't be able to fine tune when/if needed, unless turning on/off manually . It's my preference to have the option to control/monitor various inputs/enviro and their levels. This style works with high frequency fertigation.

OpenSprinkler uses raspberry pi, is this what you're referring to? Great product..

Use a wifi controlable socket.

k0rps said:

The digital timers I've used with an app usually can program minutes but not seconds.. Has anyone found a non-commercial timer that can program multiple cycles(over 12) with programmable seconds?

Edit: think I found a timer but I haven't used it or tried to program cycles with it.. it claims to have 19 programmable on/off cycles. Nice!
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^ Those work good. Been using them for years now.

Thanks all for the great suggestions. I'm going to get the hubspace outlet next trip to home depot. I got the nearpow timer from amazon, getting things dialed in as I write.

Nearpow can be hit or miss. I have a bunch of them. Every once in a while they cycle on and never cycle off. Had my reservoir emptied out in a night several times. I ended up spending the money for a growlink system and never have to worry about setting timers again or dumping the res in a night.

I've been using these for years. Super reliable and awesome functionality. Even looks like a game boy

boostedhonda said:

Nearpow can be hit or miss. I have a bunch of them. Every once in a while they cycle on and never cycle off. Had my reservoir emptied out in a night several times. I ended up spending the money for a growlink system and never have to worry about setting timers again or dumping the res in a night.

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Were you using the older versions?

Drop That Sound said:

Were you using the older versions?

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Nothing worse than a flooded tent.

No kiddin'.. I got mostly flood & waterproof floors with tall backsplashes in each grow area. Even installed floor drains in some places for waste water or whatever, but yeah that would still suck! Especially in the house/tent..

I still trust mine though. They work pretty good, and the internal batteries still hold a good charge. I never over loaded them before , with lights or anything high powered. Just pumps.. I can see there being a bad batch here and there!

Was it the left or right one?

Both styles have done it. The one on the left did it less.

Drop That Sound said:

No kiddin'.. I got mostly flood & waterproof floors with tall backsplashes in each grow area. Even installed floor drains in some places for waste water or whatever, but yeah that would still suck! Especially in the house/tent..

I still trust mine though. They work pretty good, and the internal batteries still hold a good charge. I never over loaded them before , with lights or anything high powered. Just pumps.. I can see there being a bad batch here and there!

Was it the left or right one?

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I was also tired of constantly having to change the set times regularly. It seemed I would always get a ton of runoff or none at all.

boostedhonda said:

Nearpow can be hit or miss. I have a bunch of them. Every once in a while they cycle on and never cycle off. Had my reservoir emptied out in a night several times. I ended up spending the money for a growlink system and never have to worry about setting timers again or dumping the res in a night.

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Using one of these, I had my res partially empty yesterday. About 7 gallons... it was either the timer or my siphon valve got stuck closed. Supposed to run for 35 seconds.

Laughing Grass said:

Using one of these, I had my res partially empty yesterday. About 7 gallons... it was either the timer or my siphon valve got stuck closed. Supposed to run for 35 seconds.

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I guessing the timer, that sux. At least it’s all in the tray.

boostedhonda said:

I guessing the timer, that sux. At least it’s all in the tray.

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few minutes with the shopvac and it's all good.

I'm using a slightly different timer. I have one in the veg tent doing the same job. Nearly three grows with them and they haven't given me a problem before.

This explains some uncontrolled fertigation events I've had with Nearpow. Never a full res and not from siphoning.

Laughing Grass said:

few minutes with the shopvac and it's all good.

I'm using a slightly different timer. I have one in the veg tent doing the same job. Nearly three grows with them and they haven't given me a problem before.

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Using the same here with no issues that weren't my fault. The lock feature is really nice.