Random pic of the day thread

Built a fence/deck mounted sprinkler system (will purge water from it with air for the winter so it doesn't freeze). Started off as a Rachio sprinkler controller and 4-way manifold, then decided to add motorized auto-return ball valves instead of solenoids which needed relays to switch the higher current. New grass seed is actually taking this year. Going to apply what we learned from this to a PH control valve CO2 scrubber system later this week.

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Scrubber arrived today. Ready for that stable 8.3 PH. I'll post another pic when it's done.


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