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SUMDALUS-USA is a Veteran Owned and Operated Company
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Ξ 120-Volt Electricity Ξ (**NEW** - 5th Edition)
Learn the basics of 120 VAC and why it seems to function differently in an RV than it does in a house. Discover the dangers of plugging your RV into any outlet, as well as the significant fire hazard of "Adapting Up/Down" to plug "in." Become familiar with the menacing Wiring Faults at the "post" (Open Ground, Accidental 240 Volts, Reverse Polarity, & Open Neutral), along with damaging High/Low Voltages; and how each one can dramatically affect your RV. Find out what a “SURGE” really is. Explore what “Whole RV, Electrical Protection Units” are all about. And much, much more...
Paperback: 146 pages
Language: English
ISBN-13: 978-0-9974634-8-4
Product Dimensions: 9" x 6"
Learn why an RV "house" battery is nothing like a car "starting" battery. Discover how to ensure your RV's batteries will last their intended five to six-year lifespan, rather than the more commonly experienced two years or less. Find out why your RV "unique" appliances will NOT work without a healthy 12 Volt system. Explore the difference between an "Inverter" and a "Converter" and how each works.
Paperback: 80 pages
Language: English
ISBN-13: 978-0-9974634-9-1
Product Dimensions: 9" x 6"
Ξ Refrigerator, Furnace, Water Heater, and Rooftop Air Conditioner Ξ
(4th Edition)
Learn how these RV “unique” (you won't find them anywhere else) appliances really work. Discover why these RV appliances are NOT the same as your familiar house appliances, even though they provide similar results. Become familiar with each individual appliance's “sequence of operation.” Explore lots of "tips and tricks" on how to help your RV unique appliances work more efficiently and survive longer. (Especially, the real answer to preventing the build-up of “fin” ice in the refrigerator!) Find out why annual maintenance/service is so important. And much more...
Paperback: 80 pages
Language: English
ISBN-13: 978-0-9974634-2-2
Product Dimensions: 9" x 6"
Ξ Bio-Waste Management Ξ (2nd Edition)
Learn what you don’t know about your holding tanks. Discover the six secrets to obtaining and maintaining odor-free and healthy holding tanks. Find out why most tank treatments don’t really work. Become familiar with the seven items necessary to safely "dump" the tanks. Explore how to promote biology and physics to work in your behalf, instead of their normal opposition in your holding tanks. Understand the necessity of professional (Hydro-Jet) tank cleaning and how often to have it done. And much more...
Paperback: 84 pages
Language: English
ISBN-13: 978-0-9974634-3-9
Product Dimensions: 9" x 6"
- A Vital Record of My RV's Equipment & Appliance Information -
* NEW! *
A concisely laid-out logbook for self-recording all the manufacturer's Product Label data of the repairable equipment and appliances on, in, and under your RV.
Paperback: 96 pages
Language: English
ISBN-13: 978-0-9974634-4-6
Product Dimensions: 9" x 6"
Please see our BLOG article: Why every RV owner needs a copy of My RV “LOGBOOK,” for more information.