{"product_id":"cistern-catchment-tank-monthly-maintenance","title":"Solutions HOCL™ Cistern \u0026 Catchment Tank Cleaner™ Monthly Maintenance -100G","description":"\u003ch2 style=\"font-size: 18px;\"\u003e\u003cspan\u003eKeep Your Cistern and Catchment Tank Cleaner Between Heavy-Duty Shock Treatments\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAfter your initial Shock Treatment resets a dirty cistern or rainwater storage tank, the real challenge is keeping it clean. Without regular upkeep, organic film, slime, and odor-causing residues begin building back up on tank surfaces within weeks. The SolutionsHOCL™ Cistern and Catchment Monthly Maintenance and Light Cleaner is designed specifically for this ongoing care routine. Used once per month, it helps slow the return of organic buildup on cistern and catchment tank surfaces, so your stored water system stays cleaner for longer between heavy-duty Shock Treatments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px;\"\u003e\u003cspan\u003eStep 2 in the Two-Step Cistern Care System\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SolutionsHOCL™ two-step cistern cleaning system is built around two distinct use cases for the same HOCL-based chemistry:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eStep 1,\u003c\/strong\u003e \u003ca href=\"https:\/\/solutionshocl.com\/products\/cistern-catchment-bomb-shock-treatment\"\u003e\u003cstrong\u003eShock Treatment:\u003c\/strong\u003e\u003c\/a\u003e use the Cistern and Catchment Shock Treatment when your tank shows visible slime, heavy organic film, or unpleasant odor. This is the heavy-duty reset that lifts accumulated organic buildup from tank surfaces. Use it as needed, not on a fixed schedule.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eStep 2,\u003c\/strong\u003e Monthly Maintenance: use this Monthly Maintenance and Light Cleaner once per month, after the Shock Treatment, as a routine upkeep dose. At the same 20g per 1,000 gallon rate, the monthly dose helps break down fresh organic residues on tank surfaces before they accumulate into the heavier buildup that requires a full Shock Treatment reset.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eTogether, these two products create a simple, cost-effective cistern care routine: shock when needed, maintain monthly. Regular monthly maintenance means fewer heavy Shock Treatments over time, saving both time and product cost across the life of your cistern or rainwater storage tank system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px;\"\u003e\u003cspan\u003eHow HOCL-Based Natural Oxidation Technology Works in Monthly Maintenance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis Monthly Maintenance product uses the same NaDCC (sodium dichloroisocyanurate) formula as the Shock Treatment. NaDCC dissolves in cistern water to generate hypochlorous acid (HOCL), an oxidizing compound that breaks down the organic matter responsible for slime, odor, and film accumulation on tank surfaces. In a monthly maintenance dose, HOCL targets the fresh organic residues that accumulate between Shock Treatments, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eProteins from leaf litter, insects, and bird droppings entering rainwater catchment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFatty acids from environmental runoff and organic debris in stored water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAmines from decaying organic matter settling in cistern and rainwater tanks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSulfur compounds from decomposing natural material that contribute to tank odors\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAfter the reaction, the active ingredient converts primarily into salts and water, leaving no harsh bleach-based chemical residue in your rainwater storage tank.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003e\u003cspan\u003eIdeal For These Cistern and Rainwater Tank Systems\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHomeowners, off-grid properties, and rural farms running cistern or rainwater catchment water storage systems who want a simple monthly tank cleaning routine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCistern and catchment tank owners who have completed an initial Shock Treatment and want to maintain cleaner tank surfaces month to month\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAnyone managing a rainwater storage tank system who wants to reduce how often a full heavy-duty Shock Treatment is needed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProperties with 100G tanks or multiple smaller cisterns up to 5,000 gallons combined that need a cost-effective monthly cistern maintenance cleaner\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 18px;\"\u003e\u003cspan\u003eHow to Use the Monthly Maintenance and Light Cleaner - 100G\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirections for monthly cistern and catchment tank maintenance:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003eComplete your initial Shock Treatment first. This Monthly Maintenance product is designed to follow the Shock Treatment, not replace it.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDetermine your total tank volume in gallons across the cisterns or rainwater storage tanks you plan to maintain.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDose at 20g per 1,000 gallons of tank volume. The full 100G package maintains a single cistern of up to 5,000 gallons or multiple smaller tanks with a combined volume up to 5,000 gallons.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdd the measured amount directly into tank water or into inflow as the tank fills.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow at least 1 hour of contact time for the formula to work on organic residues on tank surfaces.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRepeat once per month as a routine maintenance dose. If your tank develops visible slime, heavy organic film, or strong odors between monthly treatments, return to the Shock Treatment for a full heavy-duty reset before resuming monthly maintenance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003e\u003cspan\u003eQuick Dose Guide - 100G Monthly Maintenance\u003c\/span\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eTank Volume\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eMonthly Dose\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003ePackage Used\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eNotes\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e1,000 gallons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20g\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1\/5 of 100G package\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSmall cistern or single tank\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e2,500 gallons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50g\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1\/2 of 100G package\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMid-size rainwater storage tank\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e5,000 gallons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100g\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull 100G package\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull single monthly use of 100G\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003e\u003cspan\u003eMonthly Maintenance vs Shock Treatment: Choosing the Right Product\u003c\/span\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eMonthly Maintenance\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eShock Treatment\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eWhen to Switch\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUse case\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRoutine monthly upkeep\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeavy-duty reset\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOnce per month\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAs needed, not monthly\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFormula\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNaDCC\/HOCL based\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSame NaDCC\/HOCL formula\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDose rate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20g per 1,000 gallons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20g per 1,000 gallons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e100G price\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e$19.97\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e$29.97\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e500G price\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e$49.97\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e$59.97\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSwitch when?\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTank is already cleaned\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVisible slime, film, or odor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReturn to Shock then resume Maintenance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 18px;\"\u003e\u003cb\u003eHow It Works\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhen added to water, the formula generates \u003cb\u003ehypochlorous acid (HOCL)\u003c\/b\u003e—a powerful oxidizing molecule that reacts with organic contaminants such as proteins, fats, and sulfur compounds. This reaction helps lift buildup from surfaces and neutralize odors, leaving your system visibly cleaner.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px;\"\u003e\u003cb\u003eImportant Note\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis product is \u003cb\u003enot NSF 60 Certified and not EPA registered\u003c\/b\u003e.\u003cbr\u003eIt is sold as a \u003cb\u003ecistern and catchment tank cleaner\u003c\/b\u003e, not as a disinfectant or sanitizer.\u003c\/span\u003e\u003c\/p\u003e","brand":"Solutions HOCL","offers":[{"title":"Default Title","offer_id":47387852669149,"sku":"Monthly-maintenance-100G","price":19.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/7995\/0301\/files\/monthly_maintenanec_100g.webp?v=1780442682","url":"https:\/\/solutionshocl.com\/products\/cistern-catchment-tank-monthly-maintenance","provider":"Solutions HOCL","version":"1.0","type":"link"}