On Tue, 5 Mar 2019 08:26:04 -0600, you wrote:
Thanks. I had found that one earlier today. It has been replace by a
more expensive model. After a lot of searching online, it looks as
though I just need to look for a suitable container, get a pump, and a
heater. The proper shaped glass vase or something.
Glass is better. The etchant tends to eat the seal on rubbermaid
containers, but will work. You could use an air bubbler stone, but
that will be attacked by the acid. At one time, I used an aquarium
heater to heat the etchant, from what I remember, I stopped that and
just etched on warm days.
Ammonium persulfate (or perchlorate) does not corrode things the way
that HCL based etchants do. I've seen designs that are effectively
spray etchers, rotating cylinders with holes in them. Normal water
pipes (schedule 20 or so) do not get affected by the acid, so an "L"
of that plastic with small holes drilled in it, fed outside by an air
pump will handle the bubbler.
Your tank needs to be level for a good bubble flow.
Harvey
On 3/5/2019 8:19 AM, russell shaw wrote:
On 06/03/19 01:09, Dave wrote:
So I want to build a bubble tank. Anybody have any best methods or
DIY plans? I am pretty sure my boards will remain small for the
foreseeable future so I don't think I need an aquarium. :) I assume
plastic is the best after glass and likely no metal parts touching
the solution. An aquarium pump should work, proven designs are what I
am after.
