"Jim, have you looked into making bigger gravel guards for those people with really big hands/arms that can't put their hand down a 4" pipe easily to remove the stand pipe if adjustment is needed?
I can put my arm down a 4" pipe no…"
So you're looking for Caustic Potash or Potash Lye or Potassium Hydroxide. Where I live we have many Agricultural shops where we can get this product. Hydroponic shops also stock it. I found this on product on Amazon its food grade as…"
"There are two types of common substances called 'lye'... sodium hydroxide (NaOH) and potassium hydroxide (KOH)...Most (but not all) lye sold for soap making is sodium hydroxide (NaOH) and not appropriate for AP...So just check…"
"Doesn't barley straw break down in water to release a hydrogen peroxide compound? I imagine too much H2O2 would not be very good for bacteria...You know...seeing as how H2O2 is best known as an anti-microbial disinfectant and all...
"I did miss one detail and that is I use a small coating of clear silicone cement on the TAs and "O" ring. Don't over do it as you might want to make mods down the road. Also here is a newer pic of the bells with the routed grill at…"
Tim Mann and Susanne Friend of Friendly Aquaponics in Hawaii are offering a one-day aquaponics training in Oakland this Sunday. See their latest newsletter for details. Cost is very reasonable. They are billing the training as a benefit for Planting Justice, a local non-profit community development organization.There is a wide variety of perspectives and styles in the aquaponics world,…See More
"That is an old picture and I have made some changes. I now use an electrical female adapter and no ring nut to get rusty among many other changes. The "O"ring is a #18 from Lowes. 10 in a box. Like TC says there is no reason to go any…"
"cover the tank from full sun, aerate and leave it be.. by removing the barley, you also removed lots of surface area that had bacteria all over it...it did not "get rid of" the bacteria.. you did..
you shouldn't disregard…"