Water pump sizing

ttystikk

Well-Known Member
A high powered, high volume shop vac is your best fuckin friend.
Here's a pro tip. In between each run when draining the system to refill for a new set of plants, leave about 1/2" of water in each tote before vacuuming it all out and then wiping out THOROUGHLY with a CLEAN TOWEL, so that you can use a plastic wire bristly like brush to dip the brush in.
Clean the uniseals/bulkheads with the brush and use the brush to get inside the pipes best Ya can. Lucky for you, using the 2", Harbor Freight sells a 2 piece set that fits perfectly for the piping to clean the walls.

One more tip, you do want your bulkheads/uniseals low on the totes for obvious reasons, but it's really beneficial to leave maybe a 1/2" gap between the bottom of the tote and the bottom of the uniseals/bulkheads. Otherwise cleaning inbetween that tight space is a bitch. I have to use a towel edge pulled taught, to run through the slit to clean it. Wish my brush could just get in there.

You MUST CLEAN AFTER EVERY RUN!!!
I never did. As long as the oxygenation and water movement is on point, pathogens don't stand a chance.
 

Airwalker16

Well-Known Member
Especially the ones with the pump out feature.
OoOoOoooOoaoo this I have not seen or heard of. That's be swell.
But the little cap on the bottom with the added built-in ramp lip up to it works well for draining the whole thing.
20gal of water is heavy as a mother fucker once it's full. Thank god it has wheels.
;)
 

Airwalker16

Well-Known Member
I never did. As long as the oxygenation and water movement is on point, pathogens don't stand a chance.
Ttystik loves to counter argue every thing I ever post. Believe what you want, but a good clean, scrub, and wiping out dry of everything after each run seems like good practice to me.
I can promise you I wipe off all kinds of sludgy Shit that accumulates on the uniseals every run.
 

Renfro

Well-Known Member
OoOoOoooOoaoo this I have not seen or heard of. That's be swell.
But the little cap on the bottom with the added built-in ramp lip up to it works well for draining the whole thing.
20gal of water is heavy as a mother fucker once it's full. Thank god it has wheels.
;)
Mine you can hook a garden hose to the port up near the top. When it's full it automatically pumps out the water. No stopping, rolling or any of that. Been using one since they came out like 15 years ago.
 

ttystikk

Well-Known Member
Ttystik loves to counter argue every thing I ever post. Believe what you want, but a good clean, scrub, and wiping out dry of everything after each run seems like good practice to me.
I can promise you I wipe off all kinds of sludgy Shit that accumulates on the uniseals every run.
I know, you can't stand it when someone with actual experience shares it.

And uniseals are for amateurs.
 

ChiefRunningPhist

Well-Known Member
When I drain I just use a small 66gph pump, the same size and model I use to circulate my buckets (1 per bucket). I just cut a hose long enough to go to my bathroom tub lol, takes a few minutes but is simple enough, I'll probably buy a 150gph+ next run just to make it a bit quicker. 9 bucket system.
 

5BY5LEC

Well-Known Member
LOL you guys argue like a couple. No offense, yall both know your shit.
Uniseals suck
Airwalkers GH chart is the best
Oversize the bitch and throttle the output with a valve.
 

Airwalker16

Well-Known Member
Must admit I don't think the fault is in the uniseals but more the thickness and quality of the tub material when they are used. I have mine in blue barrels and they are great. I have infact moved the whole system as a whole on more than one occasion with no problems.
Same. Mine are in 90Mil black plastic 5gals and ive yet to have a leak.
 

ttystikk

Well-Known Member
Must admit I don't think the fault is in the uniseals but more the thickness and quality of the tub material when they are used. I have mine in blue barrels and they are great. I have infact moved the whole system as a whole on more than one occasion with no problems.
Uniseals are finicky, develop leaks, less tolerant of accidents, etc. Bulkhead fittings also work with flexible lines which just makes things so much easier to work with.
 

Renfro

Well-Known Member
You definitely need solid material and a perfectly drilled hole for uniseals to work. But when they work the ease of assembly is nice.

If the uniseal won't work then you gotta move to the bulkhead fitting that costs more.
 
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