[RE-wrenches] Acid containment

Mon Mar 30 10:35:54 PDT 2015

Bill,

Off the shelf plastic tool boxes also work, we’ve used those in the past.
You wouldn’t necessarily need to build a wood box around the plastic tool
box(es) since they will hold up on their own. It all goes back to the size
and number of batteries that you need and whether you can find a box that
has appropriate dimensions. You’ve probably already considered this option,
but I thought I’d mention it anyway. See attached pic as an example.

Best,

August

*From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
Behalf Of *frenergy
*Sent:* Monday, March 30, 2015 10:19 AM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Acid containment

Kirpal, Allen, Dana, Benn

        Yes, I'm curious about sealing laps, joints, corners, etc also.
I've seen the PVC shower pan material...we'll see if its wide enough for
our application, I always banked on about 3" up the side of a battery box
would hold many gallons of acid.   Benn, I did a search on this in the
Wrench archives and someone mentioned the spray liner would soften (and
then fail?) over time when exposed  to acid.

Bill

----- Original Message -----

*From:* Benn Kilburn <benn at skyfireenergy.com>

*To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>

*Sent:* Monday, March 30, 2015 9:48 AM

*Subject:* Re: [RE-wrenches] Acid containment

Allan,

How would you deal with a seam that happens to lay within the containment
area?  Do you seal/adhere it somehow? With what?   Or do you find that you
can get the liner sheets large enough that you just 'stuff it in' (for lack
of a better term), and then in the corners do you just double it over to
make a tight fit? Or make cuts in the corners...?

Thanks,

Benn Kilburn

SkyFire Energy Inc.

780-906-7807

On Mar 30, 2015, at 10:26 AM, Allan Sindelar <allan at sindelarsolar.com>
wrote:

Bill,
We have lined plywood boxes with either EPDM roofing membrane or vinyl pond
liner, depending on local availability, and both have worked well. Being a
flexible sheet, it is folded up the sides and stapled above the containment
zone.
Allan

*Allan Sindelar*
*allan at sindelarsolar.com* <allan at sindelarsolar.com>
NABCEP Certified PV Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
*505 780-2738 cell*

On 3/30/2015 10:03 AM, frenergy wrote:

Fellow Wrenches,

       I just called Tap Plastics hoping they would solve my problem of
battery acid containment within a plywood battery box.  I was surprised by
their response that the acrylic was not impervious to acid and polyethylene
would not work because sealants nor caulking adhere to it properly.  They
did not have anything that would work.

       I've used those individual battery boxes from an auto parts store
(~$12/each) but they take up more space than just the batteries.  Has
anyone ever used ice dam underpayment, like Grace? Better idea?

Thanks for any advice,

Bill
Feather River Solar Electric

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