Water Hardness in Sector ST19 9

Water Supply Zone Report • Supplied by Severn Trent Water

Quick Water Snapshot for ST19 9

Average Mineral Hardness160 PPMModerately Hard
English Clark Scale11.2 °ClarkCalcium carbonate equivalent
Bosch Dishwasher SettingH02Softener salt required
Technical Environmental Analysis

Water Quality Breakdown: Sector ST19 9

Residents and households operating appliances in ST19 9 receive water supplied by Severn Trent Water with an average hardness rating of 160 PPM (11.2° Clark). Categorized as Moderately Hard, understanding these chemical parameters is crucial for preventing plumbing scale and setting dishwasher softeners correctly.

Registering a moderate mineral concentration of 160 PPM (11.2° Clark), water in ST19 9 presents a manageable limescale risk. While heating element degradation is limited (approx. 5% efficiency loss), gradual white mineral film can still develop inside kettles and glass shower screens if left uncleaned.

To protect your dishwasher's internal ion-exchange resin in ST19 9, manual water softener calibration is required. For Bosch and Siemens dishwashers, the manufacturer-recommended salt setting for 160 PPM is H02. Filling the salt reservoir ensures calcium ions are neutralized before heating, preventing cloudy glass film and white spot residue on washed dishes.

Hard minerals interact with fatty acids in soaps, creating insoluble soap scum. In ST19 9, washing with 160 PPM water requires approximately +50% extra detergent or shampoo to achieve a full lather compared to soft water zones. Furthermore, residents prone to sensitive skin, eczema, or dry hair may benefit from installing an inline shower filter to reduce mineral friction during washing.

Overall, water quality in sector ST19 9 reflects Severn Trent Water's regional catchment chemistry. Use our interactive setup tool below to view exact brand-by-brand dishwasher settings and recommended limescale protection products for your home.

Water Hardness Level

160 PPM (mg/L)

11.2 °ClarkModerately Hard
0 PPM (Soft)100 PPM200 PPM (Hard)300+ PPM (Very Hard)
Water supplied by Severn Trent Water in ST19 9 is categorized as Moderately Hard. High mineral content causes rapid limescale build-up on heating elements and appliances.
Dishwasher Setup Guide

Exact Water Softener Setting for ST19 9

Select your dishwasher brand to get the manufacturer-recommended salt setting for this area.

Recommended Setting:H02
⚠️ Dishwasher salt is required to prevent cloudy glasses and internal scale buildup.
Boiler Efficiency Loss~5%Extra energy cost per year
Limescale Formation RiskModerateOn taps, kettles & showers
Detergent Needed+50% DoseFor laundry & dishwashing
Recommended Solutions

Protect Your Appliances in ST19 9

Essential

Dishwasher Regeneration Salt

Prevents limescale buildup in water softeners and stops cloudy film on glassware.

Check Price on Amazon
Skin & Hair Protection

Shower Head Water Filter

Reduces chlorine & hard minerals to protect against dry skin, eczema, and hair damage.

Check Shower Filters
Maintenance

Appliance Descaler Tablets

Quickly dissolves limescale deposits inside kettles, coffee machines, and washing machines.

View Descalers
Frequently Asked Questions

Water Hardness FAQs for Sector ST19 9

Q: What is the exact water hardness in sector ST19 9?

Tap water in sector ST19 9 averages 160 PPM (mg/L) or 11.2° Clark. It is classified as Moderately Hard water supplied by Severn Trent Water.

Q: What dishwasher salt setting should I use for Bosch in ST19 9?

For Bosch and Siemens dishwashers in sector ST19 9 (160 PPM), the recommended softener setting is H02.

Q: Does hard water cause limescale in ST19 9?

Yes, at 160 PPM, heating elements in kettles, boilers, and washing machines will accumulate limescale without periodic descaling or water softening.

Other Postcode Sectors in ST19

Explore water hardness and limescale risks in neighbouring areas within ST19