2 reservoirs 1 pump?

This is probably a very simple setup, and most people know how to do it, but google isn’t helping me here.

I i have 2 rows with 5 lights on each row. Each row is 20 feet long. 10 lights total. Each light will have at least 16 drip irrigation sites.

The pump i was told I’d need to run just one row, would be a 1/2 hp inline, and they run about 400. So I’m looking at 800 ish for just the pumps.


My question.

I’d like to have 2 reservoirs since each row would be at different stages.

Could I use 1 pump for both reservoirs?

*example

2 reservoirs side by side. Pipe coming from bottom of each reservoir and connected to sprinkler irrigation controller, then into pump, then another irrigation controller with 2 lines. Each line going to there own row.

The pump would turn on for 10 minutes. The irrigation controllers would turn on for 5 minutes for one reservoir, then 5 for the other.

I’m probably making this more complicated than need be, i just can’t think of another way, and of course the local grow store guy has never used irrigation, they don’t even have big enough pumps, so i would have to order online.

These times are just an example, to explain the set up I’m thinking of using.

It’d be nice to just use my sup pumps, one in each reservoir and not worry about the controllers, but I’m told i need an inline pump with a rating of at least 50 psi.


Thanks in advance! Any input would be much appreciated. If you could recommend a cheaper pump set up, I’d just by 1 for each reservoir and keep things simple.

Are you asking to have 2 different nute mixes off one pump? Won't happen. Admittedly, I skimmed thru the post

T macc said:

Are you asking to have 2 different nute mixes off one pump? Won't happen. Admittedly, I skimmed thru the post

Click to expand...

Well, thanks for the reply at least. It's hard enough getting answers online.

Ok, so if it won't happen, even with the example I gave

Next question.

I'm using micro drip emitters, possibly netafim or floraflex
These will be pressure compensating.

For simplicity sake. Is it even worth trying to run a 20 foot line with a sump pump?

I've used cheap 800 gph pumps to run a 8 ft recirculating tables for years. That'd make me assume I could get away with a 2400 gph and if the emitters are pressure compensating, it'd work well enough.

I'm switching to drain to waste, so i need to have them somewhat dialed in, to keep from wasting much. This will be rockwool hugos.

I know tons of people are doing DTW rockwool. Running a 20 ft/5 light line can't be that complicated...

Please, cannabis consultants out there. Help! Been doing this for close to 20 years. Just an OG grower looking for a simple solution

Here's a suggestion, a T piece from the pump with a tap on both the lines so that you can turn both on/off individually or together?

So you have your pump feed line with a T piece then your two drip lines with a inline tap on each one... Should be fine unless maybe high pressure system?

Yes I think @Star Dog has it right. Put solenoids on each tank and T them together before the pump then T off after the pump with solenoids to the drippers. I’d use motorized Ball valves if your using a low pressure system and use a time delay relay to start the pump to allow the valve time to open and avoid back pressure. A 5 station irrigation controller should to it.