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)

Dear Mike,

Concern with the black juice is discoloration on the 'shiny' metals in the tub. DeltaDissolve is meant for home use because we already have several customers that thought it'd be a great idea to take their industrial samples home. They curse me every morning when they stare at their ugly faucets or showers that have been forever stained black by my cleaner meant for other things. Most of the chromed circles that surround my jets have fallen off from the glue failing. But I'd still hate to see them all ruined with my 'problem solver' if avoidable. Every model will be different with its own problems.

I have some control in the back room later today and I'll whip up a 5 gallon jug that should do the trick. We'll send it to you so you can deliver with instructions. Have your buddy lower his tub level as low as it will go and still run the pumps. Probably point all the jets downward to minimize any splashing or maybe consider a tarp if it's indoors. We'll still have so much water that dilution will be a factor, just like with scotch or bourbon and this could take a while. He can add the whole 5 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 5 or 10 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 juice will be spent or done. Figure at least a few hours to get all the bang for the buck, but this shouldn't need to go overnight. 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. May have to do this rinse twice, depending on visual or desired results. Anything running cleaner should run better.

Boilers and chillers seem way easier for us, but I guess it all matters what one is comfortable with and how much is in the budget. You should have saved in boiler fuel about ten times what we charged Seneca for our cleaning, so I guess most of our cleanings are free. It just takes some smarter higher-ups or some BAD experiences to learn what we have known for decades. Whether it's Burger King HW heaters or nuke subs, they ALL scale eventually. We just want all to know we have the SAFEST alternatives available in the world.

Thanks again for keeping us in mind. Plan on a tub cleaning party this weekend.

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.

Have a great day.

Mike (Last Name Removed)

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)