Mr. Ostermeier,

I would like to thank you for your tremendous help in getting a Safe D Scale demonstration arranged at the Mayport Naval Station for 12-14 May 1998. The characteristics of the Navy necessitate water to be used in cooling many pieces of equipment. For this reason we have struggled for decades in cleaning scale build-up. Many sailors have spent hours chipping or acid cleaning tubes and machinery encrusted with scale through normal operation. Using Delta Products Group Safe D Scale will decrease cleaning time and be used far more effectively than an acid cleaning or subjecting equipment to hydroblasting.

It is extremely invaluable that your product is non-toxic, non-flammable, non-corrosive, non-hazardous and is biodegradable. Many technicians are still amazed your product is safe enough to hold in your open hand and can be disposed of down regular sewer systems with a fresh water flush.

I find it a pleasure to come across an environmentally concerned company with numerous products designed to completely and safely remove and prevent water scale, rust, lime and biological deposits formed in any water heated, water cooled or water operated equipment. I can assure you that we will investigate use of your products to clean and treat heat exchangers, boilers, condensers, compressors, potable water piping, firemains, urinals, and even galley dishwashers and ice machines. In fact, I am developing a cost-benefit analysis to show other Naval Commands how to clean scale at a lower cost and protect the environment.

With low cost, essential environmental and safety benefits, rapid cleaning times, and potential emergent dry docking expense savings, Delta Products Group Safe D Scale and related products will be examined by agencies requiring upkeep of all water heated or cooled equipment.

Theodore (Last Name Removed)

Thank you for your inquiry about your friend’s hot tub. The concern with our industrial descaler is discoloration on the 'shiny' metals in the tub. DeltaDissolve is meant for home use. We will tweak the Delta Dissolve for this particular application and send you five gallons.

Lower the tub level as low as it will go and still run the pumps. Point all the jets downward to minimize any splashing, or maybe consider covering with a tarp. You will still have so much water that dilution will be a factor, just like with scotch or bourbon, so this could take a while. He can add the entire five gallons and start cleaning his walls and jets without the pumps running. Or, just run them in cycles for a minute or two and then let soak for another five or ten minutes to minimize any mess. This way should get his piping, nozzles, heater & pump, as well as his walls. Not sure how much foaming will be evident with all the dilution, but with that much scale there will be plenty.

When all the foaming stops the descaler will be spent (or done). Figure at least a few hours to finish; overnight not necessary. When it's done it needs to be drained to sewer and rinsed thoroughly, just like your boiler. I'd suggest filling tub halfway and running pumps to flush all the lines too. You may have to do this rinse twice, depending on visual or desired results. Anything running cleaner will run better.

Best regards,
 
Mark Ostermeier
Delta Products Group

Thanks so much for the jug. Odie thanks you also.That worked really well. We took about a half a gallon jug of lime chips out of the tub after cleaning. For almost a week Odie has been taking a half a handful or so out every day after running it. That tub went from a gentle swirling of the top of the water, to a bubbling, churning tsunami. Most of the jets were frozen in place, now almost all of them work properly.

Dear Marty,

Heard you had some positive results on the descaling we did in Sept. How did the batch time turn out for you or might it need some additional attentions? First cleaning is always the toughest since we never know how bad it actually is fouled. Second time usually gets whatever is missed initially, only a matter of time between cleanings.
Had some ideas for you when (or if) you'd like to address the other three exchangers in that same room. I looked at the piping and it appears we'd be able to pipe all three units together and descale them all at once. Just need some isolation at the header that supplies them and some minor piping changes on some existing blanks. You know we have the pumps and hoses to 'get 'er done' whenever you're ready to save some money.

Trust most else is running well and you're keeping your head above water. I was at Harvard last week doing 2 x 2500 ton chillers and have been very busy cleaning a little of everything for a little of everybody. Just let us know if you'd like us to check back anytime soon and have a great week.

Best regards,
 
Mark Ostermeier
Delta Products Group

Mark,

Thanks for checking on us and you heard correctly. We have returned our cycle times back to were they need to be. After the first of the year I will be contacting you to set up to come and train a few of my people on your cleaning methods. My plan is then to develop a regular schedule for cleaning our heat exchangers, so you will see an increase in usage of chemical in 2009. Hope you have some great holidays and we will speak to you in 2009. 

Thanks,

Marty (Last Name Removed)

Dear Ray,

Have you received a gas bill yet to show the drastic savings from your recent cleaning? Can you share any updates?

Best regards,
 
Mark Ostermeier
Delta Products Group

Mark,

We had a twenty degree drop in stack temperature which should result in a $35,000.00 a year savings.

Thanks,

Ray (Last Name Removed)