Available to buy today

Chlorine Guard removes harmful chlorine, chloridamides and heavy metals from tap water, when used to fill up a pond.

An environmentally friendly product based on seaweed extracts it removes toxic chemicals from tap water used for topping up ponds making it safe for fish, wildlife and plants.

Supplied in - 250ml bottle

Treats - Tap water when filling/topping up a pond.

Directions and Dosage: 

Use 10ml per 1000 litres (220 gallons) of total volume of pond water every time the pond is topped up. Using more than the recommended dose will not cause any harm.

Dosing rate is based on the total volume of water in the pond/container pond, not the volume of water being added. This is because the tap water is very likely to be at a higher or lower temperature than the pond water so will initially form a "layer" either at the top or bottom of the pond. If only a small amount of Chlorine Guard is added this will sit within the existing pond water zone and will be neutralised before the added tap water mixes with the existing pond water. If Chlorine Guard is dosed based on the volume of water in the pond this will be sufficient to treat both the existing and added water.

One 250ml bottle will treat ponds up to 4500 litres (1000 gallons) during a Summer - allowing for 5 top ups. Add the Chlorine Guard from the small 10ml measuring chamber near where the new water is entering the pond or container so that it is well mixed in.

To calculate the volume of your pond - length x width x depth in feet x 6.25 = volume in gallons

Volume of our container ponds - 60cm wide = 45 litres (10 gallons) and 80cm wide = 105 litres (23 gallons) so part of a measure is sufficient for these on every top up occasion.


Plant orders are dispatched to UK destinations only. We cannot send to Northern Ireland. Your order will be picked in the Nursery and will be sealed in airtight packaging to keep it fresh during transit. Please unwrap all plants from the packaging as soon as possible and place in the situation specified on the plant ticket.

Delivery cost is calculated on total order value as follows:

Order Value Delivery Cost
£50.00 and under £6.00 *
Over £50.00 FREE *

* Postcode surcharges for certain postcodes:

  • Add £10 – AB, DD8 – 9, FK19 – 21, IV1 – 40, IV63, KW1 – 14, PA21 – 40, PH1 – 41, PH49 – 50, PO30 – 41 & TR21 – 25
  • Add £25 – HS1 – 9, IM, IV41 – 56, KA27 – 28, KW15 – 17, PA20, PA41 – 49, PA62 – 76, PH42 – 44 & ZE