Let's start with company and product info:

Address (from Aquatics magazine)
Deep Blue Water Technologies
1345 E. Chandler Blvd., Suite 119
Phoenix, AZ 85408
Phone: (602) 441-9150 (877) 882-4695 Fax: (520) 887-0092
www.4deepblue.com
Brands: MPULSE 3000

Address from BBB
Deep Blue Water Technologies
Phone: (877) 882-4695 Fax: (480) 497-4200
3145 E. Chandler Blvd., #110-718
Phoenix, AZ 85048
http://www.4deepblue.com

Another listed address:
Deep Blue Water Technologies
(480) 497-4200
170 S William Dillard Dr Ste 104
Gilbert, AZ 85233

And, yet another listed address, from "Manta"
Deep Blue Water Technologies, LLC
3881 N Oracle Road
Tucson, AZ 85705-3252 map
Phone: (520) 887-2997

OK. Looks like they've moved around quite a bit, but the BBB gives them an A+ rating, since there have been no complaints.
http://www.bbb.org/central-northern-...az-1000001671/


Description of 'how it works':
Impulse technology uses 3000 to 5000 low voltage, high frequency electrical impulses per second to break down the calcium bicarbonate and magnesium bicarbonate crystals and change them into a powder form (carbonate). This powder form does not stick to the pool tiles or rock surfaces. No more calcification. The results will be a clearer, more enjoyable pool system with fewer maintenance costs. The MPULSE 3000« is easy to install in both new and existing swimming pools. And best yet, there is nothing to add and it needs no maintenance or servicing.
http://www.ezpoolz.com/products/deep...00-mpulse.html