Ozone-assisted fluid treatment apparatus

An apparatus for ozone-aerating and filtering fluid in a pool having an infinity edge that enables water to flow out of said pool over said edge, a collection gutter for collecting the water flowing over said infinity edge, and a collection tank, said pool including a high pressure water pump and a high pressure filter, a first conduit for coupling the water in said collection tank to a water pump and high pressure filter, a drain conduit for coupling water from the bottom of said pool to said water pump, and a second conduit for connecting the water output by said water pump and high pressure filter to said pool for enabling the circulation of fluid in said pool through said water pump and high pressure filter when the water pump is on, comprising:

• an auxiliary fluid reservoir positioned adjacent to and outside of the pool;
• a lift tube positioned outside of the pool and having an upper end and a lower end, said lift tube upper end open within the auxiliary fluid reservoir, said lift tube extending below the auxiliary fluid reservoir a predetermined length;
• a third conduit for enabling fluid in the auxiliary fluid reservoir to flow into the pool via said second conduit, said third conduit including a first check valve for preventing fluid flow in a direction from said second conduit to said auxiliary fluid reservoir;
• a fourth conduit connected to said drain conduit for enabling fluid to flow by gravity from the pool into the lower end of said lift tube via said drain conduit, said fourth conduit including a second check valve for preventing fluid flow in a direction from the lower end of said lift tube to said first conduit;
• a diffuser positioned inside said lift tube at its lower end for injecting ozonated air bubbles into the fluid in said lift tube, such that, when ozonated air bubbles are injected into said lift tube by the diffuser, the ozonated air bubbles come into contact with the fluid in said lift tube and ozone-aerates said fluid, and wherein the expansion of the ozonated air as it bubbles up said lift tube causes fluid in said lift tube to flow up said lift tube and into the auxiliary fluid reservoir, which causes the level of fluid in the auxiliary fluid reservoir to rise higher than the level of fluid in the pool, and thereby cause ozone-aerated fluid in the auxiliary fluid reservoir to flow by gravity into the third conduit and, at the same time, causing fluid to flow through said fourth fluid conduit and into said lift tube;
• and
• a low pressure fluid filter positioned outside of the pool and in the fluid path formed by said third and fourth fluid conduits, said lift tube, and said auxiliary fluid reservoir, for filtering the fluid flowing therein.