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A swimming pool backwash filter which separates backwash contaminates from the backwash water so that the may be discarded separately, for connecting to a standard pool filtration system, having a pum ... 3365064 Swimming pool system and backwash assembly therefor January, 1968 Horan, Jr. 210/169...
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www.freepatentsonline.com/5505844.html
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More specifically, the present invention is drawn to a system for preventing a swimming pool from accidentally emptying when the backwash valve is set in ...
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www.patentstorm.us/patents/7156983/description.html
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Backwash water is a trade effluent, so consent must be granted from the relevant authority about nature, volume and frequency of the discharge from backwashing and dilution. The local pool in my home town, has permission to dump the effluent straight out to sea, provided it is a certain distance from the shoreline.
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www.chm.bris.ac.uk/webprojects2001/morgan/Backwashing.h...
www.chm.bris.ac.uk/webprojects2001/morgan/Backwashing.htm
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Swimming Pool Service & swimming pool maintenance & swimming pool cleaning & swimming pool chemicals instruction & help systems, step by step ... NEW TO THE SITE 2003; Swimming Pool Discussion Forum; Help us to help you & each other.
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pool-information.com/service.htm
pool-information.com/service.htm
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A backwash system for a swimming pool including a pool discharge line and a return line and a filter, characterized by a forward pump in fluid communication between the pool discharge line and the filter and a reverse pump in the return line, and a strainer housing of unique construction in fluid ... 1 and 3,
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www.patentgenius.com/patent/4194975.html
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Harrington A. A backwash system for a swimming pool including a pool discharge line and a return line and a filter, characterized by a forward pump in fluid communication between the pool discharge line and the filter and a reverse pump in the return line, ... Home Multiplexer-related Backwash-system-for-swimming-pool...
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www.eipa-patents.org/Multiplexer-related/Find-patent-Ba...
www.eipa-patents.org/Multiplexer-related/Find-patent-Backwash-system-for-swimming-pool-687259.htm
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CircleClear Swimming Pool Backwash Water Recovery System ... If swimming pool backwash water is discharged to sewer or used for irrigation, the energy used to heat that water is also wasted. The CircleClear® system allows this heat energy to be recovered.
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www.dioxide.com/Products/CircleClear/circleclear.html
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Cleaning the Swimming Pool water ... With the pool pump off, turn the filter setting to "backwash". ... Other chemicals; Filtration system; Pool Problems; Algae; Illness; Cloudy water; Burning eyes; Chlorine smell; Staining; Pool Glossary; A - B C - D; E - L M - R; S - T U - Z; FAQ; References; Contact; Search;
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www.havuz.org/pool_pool/pool_maintenance/filtration.htm
www.havuz.org/pool_pool/pool_maintenance/filtration.htm
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WIPO: Inventors in France Develop System for Heating Swimming Pool Shelter; ... According to the U.S. Patent & Trademark Office: "A swimming pool backwash control arrangement includes a timing device incorporated with a valve for controlling normal re-circulating flow and backwash flow through a swimming pool filter.
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www.encyclopedia.com/doc/1P3-1191224261.html
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