Dicalite

Spa Chem

£77.95

Diatomite or Kieselguhr has been used as a filter aid for over a century. The ore is a soft, friable siliceous mineral. It is composed of the skeletons of microscopic plants (diatoms) deposited on the bottoms of lakes and oceans probably during the Miocene age. Freshwater DE refers to diatomite that was deposited in a freshwater environment, whereas saltwater DE was formed in an ocean. Most commerical DE is freshwater DE. Under the microscope the particles of diatomite show up in a variety of forms; symmetrical figures resembling disks, rods, cylinders and snowflakes. The shapes of the diatoms

Spa Chem's own words, read from their page.

Buy from SPA CHEM LIMITEDSPA CHEM LIMITED is a UK retailer, not the maker. Out of stock. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as SPA CHEM LIMITED, number 09578556. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
Not established. Many companies file a statement rather than naming a controlling shareholder.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.

Dicalite

Where this comes from

More from Spa Chem