Hydra Sequestro 695 (Removes & Prevents Scale Build-Up)

Hydra Sequestro 695 (Removes & Prevents Scale Build-Up)
Pack Size: 250ml upto 25,000LPack Size: 500ml upto 50,000LPack Size: 1L upto 100,000L
Pack Size: 5L upto 500,000LPack Size: 2x5 Litre
Our Price:  £12.95
List Price:  £16.40
Saving Of:  £3.45 (21%)
(Inc. 20% VAT)(£10.79 Exc. VAT)

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Brand:  HYDRA

  • Fountains & Water features - scale/corrosion inhibitor and remover.
  • Prevents unsightly white deposits building up on surfaces and blocking pipework
  • Safe to use on all types of materials like stones, resin, metals including stainless steel and brass.
  • Shelf life 3 years, 1 litre treats up to 100,000 litres water

Features and Advantages 

  • Hydra Sequestro 695 for scale and corrosion control, chelation and dispersion.
  • Prevents lime scale and calcium deposits in all models of fountains & water features - ceramic, cement, plastic etc.
  • Decreases costly downtime for descaling.
  • Resists degradation in sunlight.
  • Small monthly addition will keep water clear.
  • Prevents white scale water deposits on iron, copper and magnesium scale deposits on all surfaces.
  • Prevents scale-build-up inside pumps and pipework.
  • Keeps basins looking like new.
  • Safe for birds, plants and animals.
  • Results are usually seen quickly, typically within 1-2 weeks.
  • Safe to use on all types of materials like stones, resin, metals including stainless steel and brass.

The Problem

Hard water deposits cause problems on fountains and water features. White scale deposits form on the edges of water fountains when evaporation of hard water occurs. Hard water is water that contains calcium, some water supplies contain more calcium than others. White Scale or lime/calcium deposits look like crusty layers of hard white deposits that form in a ring around the water line of your fountain.

This hard water scale can quickly build-up in hard water areas. This hard layer can cause impellors to jam and pumps to overheat and seize. Build-up inside pipework and nozzles will reduce the proper flow of cooling water circulation through the pump again a potential cause of damage to the water pump. 

When topping up with water always add Hydra Sequestro 695 scale and stain remover this greatly reduces the chance of this harmful white scale from building-up. Hydra Sequestro 695 also act as a dispersant and it keeps soils suspended as well as preventing calcium scale build-up by threshold inhibition. Because of massive evaporation experienced by most fountains and water features. It is best to drain every 2-3 months, refill with fresh water and re-apply Hydra Sequestro 695.


This product can be added to fountains and water features containing the following treatments:
Hydra Fountain Clear which is a treatment to keep water clear.
Hydra Aqua-Brite is a treatment for water which has been dyed with Hydra’s range of water dyes. Hydra Aqua-Brite will keep this water coloured clear.

Hydra Sequestro 695 is formulated to rapidly and safely remove & prevent lime scale and calcium deposits in all types of fountains & water features - ceramic, cement, plastic, stainless steel, brass, bronze, copper etc. Hydra Sequestro 695 is designed to penetrate deep into basin pits, cracks and crevices to ensure a new appearance all year around.

Hydra Sequestro 695 will also prolong the life of fountains & water features pumps by removing lime scale and calcium deposits in and around the pump housing. Developed to quickly remove and prevent white calcium deposits and iron, copper, manganese stains on all surfaces. Advanced synergy blend of environmentally safe sequestrates provide long lasting protection with superior results.

Hydra Sequestro 695 offers 2 options in using this fountains & water features care product. A preventative treatment for non-scaled systems and a removal treatment for scaled surfaces. See the chart below for usage instructions.

How To Use:

Small monthly treatments will keep water clean.
Use every time you add a lot of water or change your water, or if you have a fountain or water feature that splashes a lot of water out and needs to be refilled more often.

There are two different dose rates:

1) Removal Treatment Rate for scaled surfaces, this will slowly dissolve the scale and hold it in suspension.
2) Preventative Treatment Rate to prevent scale from forming.

Sequestro 695 Scale Removal Treatment Preventative Treatment
1 ml 25 ltr 100 ltr
25 ml 625 ltr 2,500 ltr
250 ml 6,250 ltr 25,000 ltr
500 ml 12,500 ltr 50,000 ltr
1 litre 25,000 ltr 100,000 ltr
5 litre 100,000 ltr 500,000 ltr

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