Here is a link to a swamp (also called evaporative cooler) at Home Depot.
They seem to be seasonal items at walmart.
http://www.homedepot.com/h_d1/N-5yc1v/R-100158379/h_d2/ProductDisplay?catalogId=10053&langId=-1&keyword=water+cooler+pump&storeId=10051#.UQiOimLAM-ACost less than $16 USD
On Tue, Jan 29, 2013 at 6:44 PM, Jeff Heiss <jeff.heiss@...> wrote:
> ∗∗
>
>
> The prices of the pumps in the spray etcher projects were $180, $77, and
> $100. They all appear to be water pumps but I'm not sure how the builders
> knew they would work with etchent. Todd, how much did your pump cost?
>
> Jeff
>
> _____
>
> From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
> On Behalf Of cunningfellow
> Sent: Tuesday, January 29, 2013 6:10 PM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Re: thoughts on electric paint sprayer for spray
> etching
>
> > Jeff wrote:
> >
> > What are opinions on using an electric paint
> > sprayer to spray etch a board? Could an electric
> > sprayer be modified to run etchant so it can
> > resist corroding? Would the spray pattern, droplet
> > size, and spray force be acceptable?
>
> Jeff,
>
> Look at
>
> http://www.instructables.com/id/The-Etchinator-low-cost-spray-etcher/
>
> The instructable also contains a link to Adam
> Seychells more professional etcher (a member
> here also)
>
> There are also a few more ideas such as the
> splash etcher someone oft mentions here (search
> is your friend)
>
> All of them are reasonable ideas. Most of them
> would actually be cheaper than an electric
> spray paint gun and NOT have corrosion problems.
>
> Ferric Chloride does have its place BTW. Just
> not for PCBs unless you don't do them very often.
>
> [Non-text portions of this message have been removed]
>
>
>
--
If you ask me if it can be done. The answer is YES, it can always be done.
The correct questions however are... What will it cost, and how long will
it take?
[Non-text portions of this message have been removed]