Water Softener Salt

Order your salt online and not only will we deliver it to you, but we'll put it away for you, plus top up your softener, and do a free water hardness test to check your softener is giving you beautifully softened water.

Water Softener Salt
Harvey Mini Curve Block Salt

Harvey Mini Curve Block Salt

4.3kg packs – Mini Curve blocks in easy-to-handle packaging.

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Harvey Block Salt

Harvey Block Salt

8kg packs – Harvey salt blocks in easy-to-handle packaging.

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10kg Tablet Salt

10kg Tablet Salt

A lighter alternative to 25kg sacks in easy-to-handle packaging.

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25kg Tablet Salt

25kg Tablet Salt

The traditional and most popular way to have your tablet salt delivered.

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We only supply pure Grade A PDV salt — because anything less can devastate your softener.

Some salts now entering the UK market (like sea salt, lake salt, and solar-evaporated varieties) aren’t actually cheaper — but they’re packed with things your softener really can’t handle.

⚠️ Here’s what can happen with the wrong salt:

  • Seafoam builds up inside your softener. This is often caused by algae or seaweed spores that thrive in salty environments — and once they’re in, they’re almost impossible to flush out. Your softener begins to breed algae because this type of algae thrives in saltwater environments.
  • You’ll also get oil residue from boats and ships — this coats everything internally and causes seals to slip, meaning parts stop fitting properly.
  • And then there’s the coarse and fine sand sediment, which can scratch the valve and damage precision components.

In short? It’s not worth the risk. 

✅ Using Pure PDV Grade A salt protects your machine.

❌ Using poor-quality salt will invalidate your manufacturer’s guarantee — and could cost you far more than you save.

Want to see the science?

Read the full article in our Learning Hub: Choosing the Right Salt Type for Your Softener

If you’ve been using granular salt, now’s the time to switch.

Tablet salt is far better for your machine — it reduces wear and tear, helping extend its life.

The only people who sell and recommend granular salt either don’t know how damaging it can be, or don’t care — probably because it increases servicing costs and reduces equipment life, which means more profit for them sooner.

When we deliver your salt, we’ll happily check your water softener at no charge.  

Just let us know when placing your order.

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