5000L GRP Fiberglass Water Tank for Hotel Water Supply
Key Points Tag :
Hotels, guesthouses, and homestays are densely occupied buildings with high requirements for the stability, safety, and hygiene of domestic water supply. Water safety in hotels is also a major concern for guests. Guest rooms, restaurants, kitchens, laundry rooms, and public areas require a large amount of water every day. Therefore, selecting reliable water storage equipment is an important issue that hotel owners need to consider.
The fiberglass water tank is manufactured from high-strength fiberglass reinforced plastic (GRP/FRP), featuring excellent corrosion resistance, lightweight structure, flexible installation, and easy maintenance. It is especially suitable for hotels with limited installation space, business hotels, apartments, resorts, and other commercial buildings, providing a continuous and stable domestic water storage solution.

Hotel Guest Room Water Supply

Restaurant & Kitchen Water Supply

Fire Emergency Water Storage
I. Hotel Water Usage Characteristics and Water Tank Requirements
1. Concentrated Water Usage Requires Stable Water Supply
Unlike residential buildings and other facilities, hotels have unique water consumption characteristics:
- High water demand during guest room peak hours in the morning and evening
- Continuous water consumption in restaurants and kitchens
- Large water demand from laundry facilities
- Stable water requirements for showers and bathrooms
If the water supply system does not have sufficient storage capacity, problems such as insufficient water pressure or water interruption may occur. For hotels that highly value customer experience, this can seriously affect guest satisfaction and reputation.
Therefore, hotels need to install secondary water supply storage tanks to regulate and store municipal water supply, ensuring stable water availability during peak demand periods.

2. Limited Installation Space Requires Flexible Design
In many hotel projects, the building structure is already finalized during the site selection and construction stages. Most available space is occupied by core hotel functions, leaving limited room for water storage equipment installed later.
Hotels often face challenges such as:
- Insufficient equipment room space
- Limited elevator and passage dimensions
- Roof load restrictions
- Complex underground spaces
Therefore, hotel water tanks need to be designed according to the available installation space and the maximum guest capacity.
The modular design allows on-site assembly without requiring large transportation equipment, effectively solving space limitations during hotel installation.
Advantages include:
- Standardized panels assembled on site
- Tank dimensions adjustable according to installation conditions
- Easy transportation into basements, equipment rooms, and narrow spaces
3. Dense Occupancy Requires Fire Emergency Water Storage
Hotels are usually classified as fire protection priority buildings due to their high occupancy density. In the event of a fire, a rapid and continuous firefighting water supply is essential.
In most cases, domestic water supply and firefighting water supply should be planned separately.
Fire water tanks must provide a reliable emergency water source to ensure:
- Rapid activation of fire pumps
- Effective response during the initial stage of a fire
- Avoiding reduced firefighting performance caused by insufficient municipal water pressure
For large hotel projects, fire water storage capacity should be professionally calculated according to local fire protection regulations, building area, building height, and firefighting system design requirements.

II. Features of GRP Fiberglass Water Tanks
Excellent Corrosion Resistance for Long-Term Water Storage
Hotel water tanks usually need to provide continuous and large-volume water storage. Therefore, durability, corrosion resistance, and structural strength are essential.
Traditional metal water tanks may suffer from corrosion after long-term use, which not only reduces service life but may also affect water quality.
GRP/FRP fiberglass water tanks offer:
- Excellent corrosion resistance and no rusting
- Resistance to acids, alkalis, and chemical corrosion
- Adaptability to humid, hot, and complex environments
- No secondary pollution caused by metal corrosion
- Long service life with low maintenance costs
- Suitable for commercial building fire water storage applications
For hotels located in coastal areas, tropical climates, or high-humidity environments, fiberglass water tanks are a reliable water storage solution.
With a modular design and customizable capacity, GRP water tanks can better meet the installation requirements of different hotel projects.


III. How to Calculate Hotel Water Tank Capacity?
Hotel water tank capacity should be designed according to the maximum guest capacity, restaurants, kitchens, laundry facilities, and other public areas. In addition, independent fire emergency water tanks should also be considered.
For hotel domestic water storage tanks, the calculation mainly depends on:
- Number of hotel rooms
- Daily water consumption per room
- Occupancy rate
- Water supply system requirements
Calculation formula:
Daily hotel water consumption = Number of rooms × Daily water consumption per room × Occupancy rate
Reference Water Consumption:
| Hotel Type | Daily Water Consumption per Room |
|---|---|
| Economy Hotel | 150–250L |
| Business Hotel | 250–400L |
| 3–4 Star Hotel | 350–500L |
| Luxury Hotel | 500–800L |
Example:
A business hotel with 50 rooms:
50 rooms × 300L × 80% occupancy rate
≈ 12,000L/day
If the water tank is used for daily water supply regulation, the storage capacity is usually designed at 30%–50% of daily water consumption:
12,000L × 40% ≈ 4,800L
Therefore: A 5000L GRP fiberglass water tank is suitable for approximately 40–60 room small and medium-sized hotels.
Reference for Matching Water Tank Panel Thickness and Height Values
| Height | Bottom Board | Side 1 | Side 2 | Side 3 | Side 4 | Side 5 | Top board |
|---|---|---|---|---|---|---|---|
| 5000 mm | 20 mm | 20 mm | 16 mm | 14 mm | 12 mm | 10 mm | 5 mm |
| 4500 mm | 20 mm | 20 mm | 16 mm | 14 mm | 12 mm | 10 mm | 5 mm |
| 4000 mm | 18 mm | 18 mm | 14 mm | 12 mm | 10 mm | 5 mm | |
| 3500 mm | 16 mm | 14 mm | 12 mm | 10 mm | 8 mm | 5 mm | |
| 3000 mm | 14 mm | 14 mm | 12 mm | 8 mm | 5 mm | ||
| 2500 mm | 12 mm | 12 mm | 10 mm | 8 mm | 5 mm | ||
| 2000 mm | 12 mm | 10 mm | 8 mm | 5 mm | |||
| 1500 mm | 10 mm | 10 mm | 8 mm | 5 mm | |||
| 1000 mm | 10 mm | 10 mm | 5 mm |
- FRP/GRP panels are manufactured using standard molds. Common panel sizes include 1×1 m, 1×0.5 m, and 0.5×0.5 m.
- The maximum tank height is 5 meters. For tanks exceeding 4 meters in height, external C-channel steel reinforcement is required.
- Panel thickness varies according to the tank height and pressure resistance requirements, depending on the overall tank design.
Water Tank Structure
- Panels (including bottom panel, wall panels, roof panel, and manhole cover);
- Internal Components (including internal ladder, tie rods, supports, flanges, and rubber seals);
- External Components (including external ladder, angle iron, tie plates, bolts, and nuts);
- Base (Concrete beam,C-channel steel).
Physical Properties
| Physical Property | Standard Requirement | Test Result |
|---|---|---|
| Tensile Strength | ≥60 MPa | 66.5 MPa |
| Flexural Strength | ≥120 MPa | 184 MPa |
| Flexural Modulus | ≥10 GPa | 12.8 GPa |
| Barcol Hardness | ≥60 HBa | 63.9 HBa |
| Water Absorption | ≤0.5% | 0.13% |
| Glass Fiber Content | ≥25% | 29% |
Application Scenarios
- Civil Use:
- Water storage for residential buildings, hotels, schools, and hospitals
- Supports domestic water supply and fire-fighting systems
- Industrial Use:
- Cooling water, circulating water, process water, and wastewater treatment in factories and plants
- Agricultural Irrigation:
- Large-scale water storage for irrigation systems
- Fiberglass tanks are durable, hygienic, and cost-effective for modern agricultural projects
- Other Uses:
- Potable water, seawater, chemical storage, hot water, rainwater harvesting, reverse-osmosis water tanks, swimming pool balance tanks, and industrial process/storage tanks
| Product Name | Fiberglass Water Tank, FRP Water Tank, GRP Water Tank |
|---|---|
| Material | FRP, GRP |
| Grade | Food Grade |
| Origin | China |
| Color | white |
| Panel Size | 0.5*0.5m, 1*0.5m, 1*1m, 2*1m |
| Panel thickness | From 5mm to 24mm |
| Certification | ISO3834, ISO9001 |
| HS Code | 730990 |
| Capacity | 1000Litres -Infinity |
| Foundation | Concrete Foundation, U-Steel Bottom Bas |
| Installation | Sitting Type, Welding |
| Production Capacity | 2000Ton/Month |
| Transport Package | Pallet Box, Plywood Pallet, Steel Frame |
| Sample | Provided |
| After-Sale Service | Online Technical Support |
Professional Design Capability


Packing & Shipping
- The products are packaged using iron frames or plywood boxes to ensure they are not damaged during land transportation and shipping.
- Each individual package is covered with a waterproof film to prevent exposure to moisture during long-term sea transportation.
- Accurately label all panels and accessories to facilitate quick installation by customers.

Water Tank Panel Packaging 1
Plywood Box

Water Tank Panel Packaging 2
Steel Frame Support

Water Tank Panel Packaging 3
HDG

Water Tank Panel Packaging 4
GRP/FRP

Large Components
Loose Packing

Small Accessories Packaging
Plywood Box

Full Container Shipment
Steel Frame Packaging

Full Container Shipment
Simple Packaging
Qualification & Certification
Our water tank products are designed and manufactured in strict accordance with domestic and international standards and have passed multiple industry-recognized certifications, including ISO 9001 Quality Management System certification, food-grade stainless steel material standards (SUS304 / SUS316), and drinking water safety-related certifications.




Delivery
- For standard water tank less than 200m3, it would be 3-5 days;
- For non-standard water tank and customized water tank according to client’s specific requirements, it would be 7 to 15 days.
- The final delivery time shall be subject to the actual order confirmation.
The product information provided above may not be detailed or accurate enough. Please refer to actual communication for specific details. You are welcome to contact us!

















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