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Installation of a water softener after a storage tank with a parallel line for a drinking water filter
This scheme shows the installation of a water softening system in a house with a rooftop storage tank and a pump, where the main water line passes through the tank and the softener, while the drinking water filter is connected to a separate parallel raw water line directly from the water inlet to the house.
This solution allows you to simultaneously protect household appliances and the boiler from limescale, while also providing high-quality drinking water through a separate filter in the kitchen.
This solution allows you to simultaneously protect household appliances and the boiler from limescale, while also providing high-quality drinking water through a separate filter in the kitchen.
Connection scheme of a water softener after a storage tank with a parallel line for a drinking water filter
Water softener after storage tank with parallel raw water line for drinking water filter
Author: Filter.cy Engineers
Expertise: water treatment and water filtration systems
Updated: March 2026
Author: Filter.cy Engineers
Expertise: water treatment and water filtration systems
Updated: March 2026
This scheme is used in houses where municipal water first enters a storage tank on the roof and is then supplied to the house by a pump. At the same time, a separate raw water supply line to the kitchen is additionally created directly from the water inlet to the house.
The main water line passes through a mechanical filter, a storage tank, a pump, and a water softening system. This allows the removal of hardness salts from the water used for household purposes: showers, washing machines, boilers, and plumbing.
At the same time, a parallel raw water supply line to the kitchen is created. This line supplies water directly to the drinking water filter, bypassing the storage tank and the softening system.
This scheme has several advantages:
This configuration allows you to simultaneously:
The main water line passes through a mechanical filter, a storage tank, a pump, and a water softening system. This allows the removal of hardness salts from the water used for household purposes: showers, washing machines, boilers, and plumbing.
At the same time, a parallel raw water supply line to the kitchen is created. This line supplies water directly to the drinking water filter, bypassing the storage tank and the softening system.
This scheme has several advantages:
- drinking water is supplied to the filter directly from the municipal network
- the water is not heated in the rooftop tank
- the risk of deterioration in water taste is reduced
- the drinking water filter receives a more stable water composition
This configuration allows you to simultaneously:
- protect household appliances from limescale
- provide comfortable soft water in the house
- obtain high-quality drinking water through a separate filter.
Water flow logic
City water inlet
↓
PP sediment filter
↓
Water tank (roof)
↓
Pump
↓
Water softener
↓
Split flow
├─ Boiler → Hot water
└─ Cold water → House
Parallel line
City water inlet
↓
Service valve
↓
Drinking water filter
↓
Filtered drinking water → Kitchen tap
City water inlet
↓
PP sediment filter
↓
Water tank (roof)
↓
Pump
↓
Water softener
↓
Split flow
├─ Boiler → Hot water
└─ Cold water → House
Parallel line
City water inlet
↓
Service valve
↓
Drinking water filter
↓
Filtered drinking water → Kitchen tap
Step-by-step algorithm
- Municipal water enters the system through the main water inlet to the house.
- Part of the water is directed upward to the rooftop storage tank through an inlet service valve and a mechanical filter.
- The 10-micron mechanical filter removes sand, rust, and other mechanical contaminants.
- The water enters the storage tank, where a reserve of water for the house is created.
- The pump draws water from the tank and supplies it to the water system under pressure.
- After the pump, the water enters the softening system, where hardness salts of calcium and magnesium are removed.
- The bypass line allows water to be supplied to the house bypassing the softener during maintenance or system repair.
- After the softener, the water is split into two lines: cold water for the house and a line supplying water to the boiler.
- The boiler heats the softened water and supplies it to the hot water system.
- At the same time, a separate raw water supply line to the kitchen is created from the water inlet.
- This line passes through a service valve and is supplied directly to the drinking water filter.
- The drinking water filter purifies the water and supplies it to a separate drinking water tap in the kitchen.
When this scheme is used
This scheme is typically used in the following cases:
- the house uses a rooftop storage tank
- water is supplied to the house by a pump
- installation of a softening system for all water in the house is required
- the owner wants to receive drinking water directly from the municipal network
- it is necessary to eliminate the impact of the storage tank on the taste of drinking water
Key advantages of the scheme
- protection of the boiler and household appliances from limescale
- soft water for showers, plumbing, and household appliances
- drinking water does not pass through the rooftop tank
- more stable water taste for the drinking water filter
- ability to service the softener via bypass
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FAQ
A separate line allows water to be supplied to the drinking water filter directly from the municipal network. This improves water taste and eliminates the influence of the storage tank.
Yes, but in this case the water may heat up on the roof and remain in the tank longer, which can sometimes ухудшает its taste.
It protects the tank, pump, and softener from sand, rust, and other mechanical particles.
No. In this scheme, the drinking water filter is connected to a separate raw water line, so the softener does not affect it.
Because water from the tank is supplied by a pump under stable pressure, which is necessary for the proper operation of the softener valve.
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Recommended components for this configuration
BWT Water Softener 30L CLACK WS1CI
SKU: 700.954.29
€
1200
€
1350
The BWT 30L Water Softener, equipped with the state-of-the-art Clack WS1CI valve, is the best water softener system for tackling hard water issues common in Cyprus. This system effectively reduces limescale buildup, protecting your appliances and improving the efficiency of heating systems. With a 30-liter resin capacity, it delivers a service flow rate of up to 1,000 liters per hour, ensuring a steady supply of softened water for medium-sized households. The Clack WS1CI valve offers precise control over regeneration cycles, optimizing salt and water usage for cost-effective and sustainable operation. Its compact design allows for easy installation in any home. Upgrade to the BWT 30L Water Softener and enjoy the ultimate solution for combating hard water in Cyprus while enhancing your home’s comfort and efficiency.
Ecosoft CROSS 60 Direct Flow RO
€
500
€
Ecosoft CROSS 60 is a direct flow reverse osmosis system without a storage tank, designed to provide a continuous supply of purified water at up to 60 liters per hour. Water is delivered immediately after filtration, without storage, eliminating stagnation and unwanted taste.
The system removes up to 99% of contaminants, including chlorine, heavy metals, bacteria, and organic compounds. Thanks to direct flow technology, you get consistent pressure and fast water delivery instead of the slow trickle typical of conventional systems.
The system also includes modern safety and control features:
The system removes up to 99% of contaminants, including chlorine, heavy metals, bacteria, and organic compounds. Thanks to direct flow technology, you get consistent pressure and fast water delivery instead of the slow trickle typical of conventional systems.
The system also includes modern safety and control features:
- leak protection
- automatic membrane flushing
- stable operation under pressure fluctuations
- energy-efficient pump
Examples of completed projects
Useful links
Expert Recommendations for Choosing a Water Softener
Learn expert tips for choosing a water softener, from assessing water hardness to selecting the right system for your Cyprus home or business
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Is Salt from Water Softeners Bad for Your Health?
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Are Water Softeners Harmful to Your Health?
Learn if water softeners are safe to drink, their health impact, and alternatives for low-sodium diets.
Is Tap Water in Cyprus Safe to Drink? Read Before You Taste (2025 Updated Guide)
Tap water is officially safe, but why do locals avoid it? Discover the truth about hardness, chlorine levels, and the best drinking solutions in Cyprus.
Understanding Water Hardness in Cyprus
Learn about water hardness in Cyprus, its effects, and the best solutions like water softeners and reverse osmosis systems to improve water quality.
How Does Hard Water Affect Skin and Hair?
Discover how hard water impacts your skin and hair, causing dryness and dullness. Learn how to protect yourself with water softeners and shower filters in Cyprus
Is Hard Water Harmful to Plants?
Learn how hard water affects plants, from soil buildup to leaf residue. Discover solutions like water softeners and rainwater collection for healthy gardening in Cyprus
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