I've seen a "system" for a couple dozen individual tomato and cucumber plants. Take a two liter plastic bottle. Heat a small diameter wire,(like a paper clip size) and poke a single small hole on the side and very near the bottom. Dig a shallow(2 or 3
inch deep) hole right adjacent to the plant. Insert the bottle with the small hole on the side facing the plant. Fill the bottle and replace the lid. The water will seep out very slowly and only need to be refilled. By removing the cap, placing a funnel
in the top opening, filling and replacing the cap. The sealed system keeps water from escaping quickly but the expansion and pressure caused by heating will push a small amount out on a regular basis. Of course you will need to watch how fast it does
empty the contents. The size of hole and rate of temperature change could change the rate. The example I read about kept the soil moist below the surface. Having it enter below ground would lessen evaporation. Mulch would help even more. Just an idea.
Maybe a bigger jug(gallon milk or juice carton with screw lid) may help too. Lots you can play with.

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On 6/14/2022 3:45 PM, 1salmo wrote:

I've seen a "system" for a couple dozen individual tomato and cucumber plants. Take a two liter plastic bottle. Heat a small diameter
wire,(like a paper clip size) and poke a single small hole on the side
and very near the bottom. Dig a shallow(2 or 3 inch deep) hole right
adjacent to the plant. Insert the bottle with the small hole on the side facing the plant. Fill the bottle and replace the lid. The water will
seep out very slowly and only need to be refilled. By removing the cap, placing a funnel in the top opening, filling and replacing the cap. The sealed system keeps water from escaping quickly but the expansion and pressure caused by heating will push a small amount out on a regular
basis. Of course you will need to watch how fast it does empty the
contents. The size of hole and rate of temperature change could change
the rate. The example I read about kept the soil moist below the
surface. Having it enter below ground would lessen evaporation. Mulch
would help even more. Just an idea. Maybe a bigger jug(gallon milk or
juice carton with screw lid) may help too. Lots you can play with.

I like my drip system better , though it's considerably more
expensive than yours . Every 3 days or so depending on rainfall I will
flip the switch that turns on the submersible pump in my well . I then
set a timer for 45 minutes to let me know when to turn it off .
--
Snag
“Free speech is my right to say what you don’t
want to hear.” -George Orwell

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Personally, I have 14 raised beds @4'x4' each. They are all hooked up to my auto irrigation 2gph droppers at each plant. Seven minutes every other very early morning seems to do the trick. That old thread I answered to had many limitations to automatic
systems. I just though the system I had read of was quite ingenious for a primitive system.

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Sometime recently you wrote:

On 6/14/2022 3:45 PM, 1salmo wrote:

I've seen a "system" for a couple dozen individual tomato and cucumber
plants. Take a two liter plastic bottle. Heat a small diameter
wire,(like a paper clip size) and poke a single small hole on the side
and very near the bottom. Dig a shallow(2 or 3 inch deep) hole right
adjacent to the plant. Insert the bottle with the small hole on the side
facing the plant. Fill the bottle and replace the lid. The water will
seep out very slowly and only need to be refilled. By removing the cap,
placing a funnel in the top opening, filling and replacing the cap. The
sealed system keeps water from escaping quickly but the expansion and
pressure caused by heating will push a small amount out on a regular
basis. Of course you will need to watch how fast it does empty the
contents. The size of hole and rate of temperature change could change
the rate. The example I read about kept the soil moist below the
surface. Having it enter below ground would lessen evaporation. Mulch
would help even more. Just an idea. Maybe a bigger jug(gallon milk or
juice carton with screw lid) may help too. Lots you can play with.

I like my drip system better , though it's considerably more
expensive than yours . Every 3 days or so depending on rainfall I will
flip the switch that turns on the submersible pump in my well . I then
set a timer for 45 minutes to let me know when to turn it off .

I have used commercial low-pressure dripline for many years: 1/2 gph
emitters spaced at 6" running at 25psi on a spring powered timer.
Close-mesh filters keep the glop out but require frequent cleaning. I
garden (veggies exclusively) in nine 8'x3' raised beds. Plants are
closely spaced to eliminate the need for mulch ,which is, as my dad
said, "ain't nothin' but a place for cutworms to hide"..
--
Derald
USDA Zone 9b
Peninsular Florida

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On 6/15/2022 8:31 AM, 1salmo wrote:

Personally, I have 14 raised beds @4'x4' each. They are all hooked up to
my auto irrigation 2gph droppers at each plant. Seven minutes every
other very early morning seems to do the trick. That old thread I
answered to had many limitations to automatic systems. I just though the system I had read of was quite ingenious for a primitive system.

I'm still in the figuring things out phase of drip irrigation . I'm
thinking I might need some kind of filter in the system , my adjustable emitters are apparently getting plugged with something in the well water
. When I first tried it out there was a fine screen in the hose adapter
that was getting plugged with some very small particles , don't know
what . I thought whatever it is was small enough to pass thru the
emitter holes , but maybe not .
--
Snag
“Free speech is my right to say what you don’t
want to hear.” -George Orwell

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