Frequently Asked Questions

How does block salt differ to normal table salt?
Initially water softener salt was only available in huge bags of loose salt granules that were heavy, difficult to store and handle and made a lot of mess.

When block salt was invented it revolutionised the industry as it weighs a lot less than granular salt, making it easier to store, handle and manage with no chance of spillage. The salt is compacted into a block and is very dense. This means that water softeners themselves can be small and need refilling less often.

Today's block salt even has indents that can be used as handles making it a lot easier to manage and place into your water softener.

Why do I need to buy block salt for my water softener?

Salt is an essential element to enable your water softener to work correctly and efficiently and get rid of the calcium and magnesium in the water. Block salt cleans out your water softener and keeps it running efficiently and effectively.Your water softener will not work without it so it is important to replenish your block salt as soon as it runs out.

Water softeners remove the minerals in hard water by catching them in the resin within your water softener. The build-up of minerals in the needs to be flushed out regularly and so your water softener 'regenerates'. Your water softener regenerates one cylinder at a time: the amount of water passing through the first cylinder is measured by a water meter and when enough water has passed through, the second cylinder takes over. Meanwhile, the first cylinder regenerates by flushing out this mineral using a mixture of soft water and sodium (salt).

All you need to do to keep this process running smoothly is refill your softener's salt every few weeks using Twintec block salt, which is much easier to handle than loose salt. Simply slot the required amount of block salt into the device at a set time.

How much block salt do I need?

We estimate that you would need a maximum of one 4g block of sale per person, per month. This will of course vary depending on the amount of water your household uses and how hard your water is.

Which water softeners are compatible with your block salt?

Our block salt is compatible with block salt water softeners from most main manufacturers, including TwinTec, Harvey's, Minimax, Crown, Kinetico etc.

Please see our water softeners page for more information

Does block salt contain any impurities?

No, our block salt is made from 100% pure food grade salt and contains no additional chemicals or anticaking agents.

What are the benefits of having soft water?
  • Shiner surfaces that require less cleaning
  • Less limescale on taps and appliances which means they have a longer lifespan
  • Improved glossier hair and softer skin
  • Cheaper energy bills, more efficient hot water system
  • Tastier cups of tea!
What if my block salt gets damaged during delivery?

We deliver your block salt ourselves, using our own delivery drivers and fit for purpose delivery vehicles.

We never use third party couriers so we can reassure you that your salt will not get damaged during delivery.

Do you deliver to my area?

Use our delivery checker to find out if we deliver in your area.

If you are in doubt, please contact us prior to ordering.

Please allow up to 10 working days for delivery, although we do aim to deliver sooner.

New Harveys' Packaging

Thousands of our customers will have regularly seen the Harvey’s packaging (Black and White with 2 characters). In 2018 Harvey's block salts rebranded and have new packaging.

Harvey's packaging

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We offer inclusive delivery.

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Family-run company
Inclusive local delivery
Competitive pricing
Over 30 years' experience

Any questions? Give Soft Water Supplies a call on 01489 786711