BioGuard Basic Shock - Quick-Dissolving Granular Pool Shock 5 lb

Fast-Dissolving Chlorine Pool Shock for Clear, Healthy Water

BioGuard Basic Shock is a quick-dissolving granular chlorine pool shock made for pool owners who want straightforward, effective water treatment without unnecessary additives. This 5 lb size gives you a larger supply for routine shocking, algae treatment support, and water clarity maintenance throughout the swim season.

Designed as a fast-dissolving granular trichlor shock, BioGuard Basic Shock helps eliminate contaminants, kill and prevent bacteria and algae, and restore clear pool water. It is a practical choice for weekly pool maintenance, post-rain treatment, heavy swimmer use, hot weather, or any time your pool needs an extra chlorine boost.

This formula is positioned as a basic, value-focused shock option within the BioGuard pool care lineup. It can be used with the BioGuard 3-Step Pool Care System and is suitable for all pool types when used according to label directions.

Key Benefits

• Quick-dissolving granular shock: Dissolves quickly for fast pool water treatment.

• 5 lb larger-size supply: Convenient for multiple treatments and ongoing seasonal maintenance.

• Helps restore water clarity: Supports clearer water by treating contaminants that can cause dull or cloudy pool conditions.

• Kills and helps prevent bacteria and algae: Provides essential chlorine shock treatment for cleaner pool water.

• No pre-dissolving needed: Designed for direct application according to label directions.

• Suitable for all pool types: A versatile pool shock for regular swimming pool care.

• BioGuard 3-Step compatible: Can be used as Step 2 in the BioGuard 3-Step Pool Care System.

• Straightforward formula: A practical option for shoppers who want basic chlorine shock performance without premium add-ons.

Product Details

Compatibility and Requirements

BioGuard Basic Shock is intended for swimming pool shock treatment and regular pool maintenance. It is suitable for all pool types when used as directed, but always follow the label on your specific package and consider your pool surface, equipment, and current water chemistry before application.

Do not pre-dissolve unless your specific product label says otherwise. Do not apply through a skimmer or chemical feeder, and never mix with other pool chemicals. To help prevent surface damage, brush away any undissolved granules that settle on the pool floor.

Always test chlorine levels before swimming. Do not enter treated pool water until chlorine levels are within the safe range stated on the product label.

How to Use

Routine Pool Shocking

Add BioGuard Basic Shock at the label-directed rate for your pool volume. Published directions for BioGuard Basic Shock commonly reference 1 lb per 12,000 gallons of pool water for shock treatment.

Apply into the deepest pool area according to directions, then operate the pump and filter continuously after treatment. For best results, shock weekly and reapply after heavy pool use, high temperatures, or rainfall.

Algae Treatment

Brush pool surfaces before treatment, especially in areas with visible algae growth. Apply the product directly to the pool water in the affected areas according to label directions, then circulate and filter as directed. Do not swim until the free available chlorine residual is back within the proper range.

Pool Closing

For pool closing, backwash the filter according to manufacturer directions before treatment. Published instructions reference a stronger closing dose than routine shocking, so follow the product label carefully and use the appropriate winter algaecide after shock treatment when closing the pool.

Why Choose the 5 lb Size?

The 5 lb size is a practical step up from single 1 lb bags for pool owners who shock regularly. It gives you more product on hand for weekly maintenance, cloudy water recovery, post-storm treatment, and algae prevention support without needing to purchase individual bags for every use.

FAQs

Is BioGuard Basic Shock a chlorine pool shock?

Yes. BioGuard Basic Shock is a granular trichlor chlorine shock for swimming pool treatment.

How much BioGuard Basic Shock should I use?

Published directions commonly reference 1 lb per 12,000 gallons for routine shock treatment. Always follow the label on your specific package and adjust based on pool volume and water conditions.

Do I need to pre-dissolve it?

No. BioGuard Basic Shock is described as quick-dissolving with no need to pre-dissolve. Always follow your product label for safe handling and application.

Can I use this through a skimmer or chemical feeder?

No. Published directions state not to apply BioGuard Basic Shock through a skimmer or chemical feeder.

When can swimmers re-enter the pool?

Test chlorine before swimming. Published directions state that re-entry is prohibited when chlorine is above 4 ppm and that swimmers should wait until the free available chlorine residual is within the proper range.