The Growery
Active Member
I use tea every day in my flower room and was getting tired of cleaning out the 5 gallon bucket and only having limited amounts, not to mention the mess from dispensing out of a 5 gallon bucket. I wanted something that would be ergonomic, practical and economical. This is what I came up with:





Parts List:
1 x 15 Gallon Cone Bottom Container $85 shipped
6 ft. 1 1/2" PVC $8
3 ft. 2" PVC $5
6 x 1 1/2" 90 Degree Elbows PVC $6
2 x 1 1/2" x 3/4" T Joint PVC $2
2 x 3/4" x 1/8" Brass threaded hose barb $6
1 1/2" PVC T Joint $2
1 1/2" x 3/4" Slip Joint to Threaded PVC Cap $5
3/4" Brass Hose Spigot $9
2" x 1 1/2" Rubber Reducer $5
110 L/min Air Pump $80
8 ft. Air hose $1
Purple primer PVC cement $4
Orange PVC cement $4
15 watt Aquarium Heater (unless heated basement) $15
Optional - EC/pH/Temp continuous meter (recommended, allows for exact ingredient mixtures) $100-380
This allows for 15 gallons of compost tea available any time. I use about 3-5 gallons per day and top off with filtered water at the end of the day. For every 5 gallons of water added to a existing brew, I add 2 tablespoons of molasses, 1 tablespoon of liquid kelp and a teaspoon of liquid humus. When adding fresh water I blast off bio slime in the airstacks as well as the tank itself. This bio slime sediment settles at the anaerobic pocket in front of the spigot which can be drained and removed easily. Using this method I am able to keep teas going for two weeks, probably longer but at that point I drain the system, spray it down, cycle it with a quart of 91% iso to 15 gallons water, rinse and brew again. The convenience of having AACT at the turn of the spigot is great.
So how do I know that the tea is good for that long? By microscope. The book "Teaming with Microbes" has a wealth of knowledge including identifying good and bad bacteria/fungi and the different types of predators such as protozoa. Using this knowledge I have been checking this brewer on a daily basis for microbial life and it has remained consistent from day 2 to day 14. The picture shows no foam in the vortex but this pic was taken after a fresh brew was started. After 24 hours there is ample, heady froth that remains throughout the brew further indicating a live and vigorous microbial presence.





Parts List:
1 x 15 Gallon Cone Bottom Container $85 shipped
6 ft. 1 1/2" PVC $8
3 ft. 2" PVC $5
6 x 1 1/2" 90 Degree Elbows PVC $6
2 x 1 1/2" x 3/4" T Joint PVC $2
2 x 3/4" x 1/8" Brass threaded hose barb $6
1 1/2" PVC T Joint $2
1 1/2" x 3/4" Slip Joint to Threaded PVC Cap $5
3/4" Brass Hose Spigot $9
2" x 1 1/2" Rubber Reducer $5
110 L/min Air Pump $80
8 ft. Air hose $1
Purple primer PVC cement $4
Orange PVC cement $4
15 watt Aquarium Heater (unless heated basement) $15
Optional - EC/pH/Temp continuous meter (recommended, allows for exact ingredient mixtures) $100-380
This allows for 15 gallons of compost tea available any time. I use about 3-5 gallons per day and top off with filtered water at the end of the day. For every 5 gallons of water added to a existing brew, I add 2 tablespoons of molasses, 1 tablespoon of liquid kelp and a teaspoon of liquid humus. When adding fresh water I blast off bio slime in the airstacks as well as the tank itself. This bio slime sediment settles at the anaerobic pocket in front of the spigot which can be drained and removed easily. Using this method I am able to keep teas going for two weeks, probably longer but at that point I drain the system, spray it down, cycle it with a quart of 91% iso to 15 gallons water, rinse and brew again. The convenience of having AACT at the turn of the spigot is great.
So how do I know that the tea is good for that long? By microscope. The book "Teaming with Microbes" has a wealth of knowledge including identifying good and bad bacteria/fungi and the different types of predators such as protozoa. Using this knowledge I have been checking this brewer on a daily basis for microbial life and it has remained consistent from day 2 to day 14. The picture shows no foam in the vortex but this pic was taken after a fresh brew was started. After 24 hours there is ample, heady froth that remains throughout the brew further indicating a live and vigorous microbial presence.