Prevention and removal of stains in pools and spas

Details Prevention and removal of stains in pools and spas Prevention and removal of stains in pools and spas

1983-12-12

1985-05-28

Wyse, Thomas

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 29, 134 42, A45B 2506

Patent

active

045198470

ABSTRACT:
Cobalt stains which form on fiberglass swimming pools and spas can be removed by washing the fiberglass surfaces with a quantity of a mixture of benzalkonium chloride and EDTA Na4 mixed in a quantity of muriatic acid. The stain removing liquid is brushed onto the fiberglass surface and rinsed therefrom with a high pressure hose. The pool water treated with a mixture of benzalkonium chloride and EDTA Na4 will prevent the formation of cobalt stains on fiberglass pools and spas. A mixture of benzalkonium chloride in water with muriatic acid cuts the acid fumes to a user in cleaning a plaster pool, protects the surface of the pool and acts as a cleansing agent.

REFERENCES:
patent: 3962497 (1976-06-01), Doty et al.
patent: 4047971 (1977-09-01), Yahagida et al.
patent: 4324678 (1982-04-01), Howson

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