SPOTBLOC is a unique pool stain eraser that dissolves metal, calcium, and organic stains directly from underwater pool surfaces.
A blend of special acids and chelating agents in a solid block form, it requires no draining, no harsh sprays, and no specialist tools — just apply by hand or using the Block Holder.
Available from pool shops, selected hardware stores, and garden centres around Australia. Contact us directly for a distributor near you, or purchase online.
What Does SPOTBLOC Remove?
SPOTBLOC is designed to tackle the spot stains that are difficult to treat with liquid pool chemicals alone.
- Calcium scum lines and calcium scale deposits at the waterline
- Metal stains from iron, copper, and other dissolved minerals
- Organic stains from leaves, algae, and other debris
- Stubborn spot stains on pool walls, steps, and grouting
- Stains on above-water paving and stone surfaces
How It Works
SPOTBLOC's block technology delivers a concentrated blend of acids and chelating agents directly onto the stain surface — breaking down the mineral and organic bonds that cause discolouration.
It works as a stain remover block that you simply rub onto the affected area, releasing its active stain-erasing chalk exactly where it's needed — without dilution or runoff.
How to Use SPOTBLOC
Identify the stain to be treated and ensure you can reach it by hand or with the Block Holder.
- Rub SPOTBLOC directly onto the stain using a criss-cross pattern
- Build up a thin, even layer of the stain-removing chalk over the affected area
- Check after 24 hours and reapply if necessary
- Severe or old stains may require several treatments
- When finished, place SPOTBLOC in a safe location away from children to dry before returning it to the container
SPOTBLOC can also be placed directly over a stain and left in position — no rubbing required for some applications.
Key Benefits
- Removes calcium scum lines and calcium scale at the waterline
- Dissolves metal and organic spot stains underwater
- Works on pool walls, steps, grouting, paving, and stone
- No pool draining required
- Simple to use — apply by hand or with the Block Holder
- Can be rubbed on or placed directly over the stain
Product Details
- Pack contents: 1 x 500g jar (contains 2 x 250g SPOTBLOC tablets)
- Application: Pools, spas, paving, and stone surfaces
- Delivery: Express postage included — Australia Wide
