Rainwater harvesting system, also called rainwater collection system or rainwater catchment system, technology that collects and stores rainwater for human use. Rainwater harvesting systems range from simple rain barrels to more elaborate structures with pumps, tanks, and purification systems.

1. The First Manufacturer of Rainwater Harvesting System in China
Service Provider for Sponge City Construction
400-0188-400

2. Rainwater Harvesting System
One-stop
Solution Provider

3. Company Profile
• Shenzhen Doctor Rain Rainwater Recycling Co., Ltd. founded in
2013, with factory located at Bao'an District of Shenzhen City in
Guangdong Province, is a production-oriented enterprise. Doctor
Rain is our own brand. Our company is the first manufacturer for
Rainwater Harvesting System in China.
• Our factory covers 8000 square meters,and 10 production lines,
with 200 skilled workers. We have 5 years of experiences in
design and making rainwater collection system, have completed
more than 500 projects in China mainland. The enterprise insists
on the road of independent innovation, focusing and specializition.
At present, the company has formed a comprehensive rainwater
utilization system including R&D, production, design, sales and
construction.
• Based on Doctor Rain's rainwater harvesting system, drainage
system, infiltration system and drainage integration
technology,with independent intellectual property rights, the
company has achieved breakthrough research results in rainwater
comprehensive utilization technology, and has fully realized the
industrialization of scientific research results. We have declared
more than 30 patents for the related technologies.
• With years of technical accumulation and business innovation, we
have passed certification for GB/T19001-2008/ISO9001: 2008
Standard Quality Management System, GB/T28001-2011/OHSAS
18001:2007 Occupational Health and Safety Management
System,and GB/T24001-2004/ISO14001:2004 Environmental
Management System. On September of 2018 we got the export
licence, we started to export by our own, right now 30% of our
products are for exporting, we believe the percentage will increase
soon in the near future. We have a skilled professional team, we
can offer turn-key service for any size of rainwater harvesting
system in any countries.

4. Qualification

5. Company Overview

6. Rainwater Harvesting System
1.Rainwater Inlet Pipe
2.Dirt Interception Basket Device ( Silt Trap)
3.First Flush Device (Intial Dirty Water Removal Device)
4.Rainwater Automatic Filter
5.Inspection Well ( Access Chamber)
6.Underground pool (rainwater tank system)
7.Pipe Connecting Box

7. Rainwater Modular Tank
• Model No.: YBS-M1000
• Size: 1000mm long, 500mm wide, 400mm high
• Material: 100% recycable PP
• Weight: 16 kgs
• Void Ratio: 95%
• Design Life: 50 years
• Temperature: -30℃ to 120℃
• Storage Capacity: 200L/Tank
• Vertical Loading Pressure: 300KN/㎡ - 700KN/㎡
Top Cover
Side Plate
Big/Small Clip
Rainwater Module

8. Advantages of Rainwater Modular Tank
1.Fexible Modular design: allow flexibility of shape and size of the underground pool.
2.High loading capacity: from 30 to 70 tonnes enable it for various application environment.
3.High void ratio: 95% Void space allow to store more water inside.
4.Long service life: the designed service life is up to 50 years.
5.Easy installation: the assembling of the modular tank can be done just by hands.
6.Compact Storage: stackable design, one 40'HC container can hold 294.4 cubic meters.
7.Environmental friendly: manufactured of PP, 100% recyclable at the end of its service life.

9. Dimension of Parts

10. Weight List
Module: 4.8kgs/unit
Side Plate: 1.03kgs/unit
Top Cover: 0.065kgs/unit
Big Clip: 0.02kgs/unit
Small Clip: 0.012kgs/unit
Form the main body of the pool
only needed for the perimeter of the pool
Only needed for the top side of the pool
For connecting up and down
two layers of tanks
For connecting the top side
of tanks

11. Tank Comparison
Different quality grade of the tank has different loading bearing capacity, in order to
save your cost, please choose the right tank according to your project requirement.
We have three grades of qualities, they are 30T, 45T and 60T.
30T means the virtical bearing strength on a surface of 1 squre meter is 30 tonnes.
Choose the right tank for your projects

12. Packaging Details
Modules and side plates are stacked on pallets
Qty for modules on big pallet is 192pcs
Qty for modules on small pallet is 128pcs
Qty for side plate on big pallets is 480pcs
Qty for side plate on small pallets is 320pcs
Qty for top cover in one wood case is 3000pcs
Qty for big buckle in one wood case is 15000pcs
Qty for small buckle in one wood case is 28000pcs
(1). One full container only loaded with modules
128x20+192x2=2944 (modules) ,
20 small pallets, and 2 big pallets.
(2). One container mixed with modules and side plates
128*19+192*1=2624(modules),
320*2+480*1=1120 (side plates)
(3). One container mixed with module and big buckles.
128*22=2816 (modules),
15000*2=30000 (big buckles)
(4). One container mixed with module and small buckles.
128*22=2816 (modules)
28000*2=56000 (small buckles)
(5). One container mixed with module and top covers.
128*22=2816 (modules)
3000*2=6000 (top covers)
If you want to buy one container with all these parts, we suggest the following arrangement:
128*20=2560 (modules)
320*2=640 ( side plates)
3000*1=3000 ( top covers)
15000*0.5=7500 ( big buckles half case)
28000*0.5=14000 (small buckles half case)
With above arrangement, we can put 256m3 of modules into 1 40'HC container, you can also reduce
the number of pallets for modules and increase the number of pallets for side pallets if you think you
need more of it.
Top covers, small /big buckles are packed in wood case
The following calculation is for one 40'HQ container
Notes: We have a formula to help
you find out the quantities of all the
parts for an underground pond,
please don't hesitate to request it
from us.

13. Interception Basket Device
Description:
This is a filter device that is set upstream of a tank system and its purpose is to
prevent any kind of leaves,silt, soil, sediment, metals or debris from entering the
rainwater storage system by holding the storm water in the trap for some time and
allowing these unwanted materials to settle to the bottom of the basket and separate
from the water.
All these sediments mentioned above should not be allowed to flow into the tank
system as they will cause damage to it, reduce its sustainability. It collects these
materials in a basket at the bottom of the basin and allows the filtered water to carry
on through to your storage system. This basket can of course be easily removed and
put back into place when cleaning is required. It will prevent 99% of all sediment from
entering your storage systems.
This product is made of PE material, with built-in stainless steel filter net and non-
woven fabric, the mesh size is only 2mm, which can intercept large garbage and
leaves, sand, silt, etc.
The basket has a handle, which enable us easily take the sand and garbage out from
it, thus effectively protect the rest of devices to ensure them work perfectly.
Installation
This device is equipped with a part which we can adjust it height, so it can be
increased its height according to the depth of the part buried undergound. After the
pipe is connected, it can be installed directly and then backfill with soil. There shall
be a top cover of the device that can be opened to check inside and clean up.
Specification
Model No. YBSJW-200 YBSJW-300 YBSJW-500
Dimension H1000mm
*DN600mm
H1000mm*
DN600mm
H1000mm*
DN700mm
Inlet Pipe DN200 DN300 DN500
Mesh Size 2mm 2mm 2mm
Cleaning
Method
By hand By hand By hand
Material PE / FRP /
stainless steel
/ 304
PE / FRP /
stainless steel
/ 304
PE / FRP /
stainless steel
/ 304

14. First Flush Device
(Intial Dirty Rainfall Removal)
Description:
The initial 2-5mm rain is heavily polluted, and quite small flow. Because of gravity, the
rain will first pass through the lower and open discharge pipe in this device. When the
rain volume increases, it hits the top heavier, and the floating ball in the sewage pipe is
under a certain pressure, to stuck the first flush pipe. Water level in the tank goes up,
and the rainwater goes through a horizontal filter and the outlet, to be harvested into
the storage tank. After the rain stops, with the reduction of the rainwater stored in the
device, the floating ball is automatically reset because of its spring force, and the
garbage produced by the filter is brought out, so as to achieve first flush, filtering,
automatic discharge of sewage and so on.
Application:
It can be used as a first flush device in rainwater harvesting systems on roofs, under
grounds or roads, and generally installed after interception basket device (Sand trap,
Silt Trap).
Specification
Model No. YBSQL-100 YBSQL-200 YBSQL-300
Dimension Height 555mm,
Diameter 200mm
Height 1000mm,
Diameter 600mm
Height 1000mm,
Diameter 600mm
Inlet Pipe Size DN100 DN200 DN300
Sewage Outlet Pipe
Size
DN50 DN110 DN110
Installation
requirement
Roof of buildings
less than 9 storeys
(if more than 9, take
energy-saving
measure into
consideration)
The drop between
inlet pipe and outlet
pipe must be more
than 30cm
The drop between
inlet pipe and outlet
pipe must be more
than 30cm
Control Method By rainfall Volume By rainfall Volume By rainfall Volume
Material ABS PE / FRP / stainless
steel / 304
PE / FRP / stainless
steel / 304

15. Rainwater Automatic Filter
Description:
Gravity is used in this product, to separate the garbage and water automatically, and get
clean rainwater.
Rainwater gravity is fully considered in this product, to achieve automatic shunt and
filtration. It consists of a coarse net filter, filtering material that can absorb impurities, and
a fine filter. Garbage will be sorted out and suspensions will be absorbed, so the water is
clean and clear. It’s easy to cleanup, by taking out the internal component, and remove
the garbage, to achieve an ideal purification.
We can also make the discharge pipes with infiltration material, which doesn’t need to
be connected with discharge pipes.
Specification:
Model No. YBSRF-200 YBSRF-300 YBSRF-500
Dimension Height 1000mm,
Diameter 600mm
Height 1000mm,
Diameter 600mm
Height 1000mm,
Diameter 700mm
Inlet Pipe Size DN200 DN300 DN500
Mesh Size 1mm 1mm 1mm
Installation Level up the
foundation, bury
underground directly,
and backfill with
permiable sands
Level up the
foundation, bury
underground directly,
and backfill with
permiable sands
Level up the
foundation, bury
underground directly,
and backfill with
permiable sands
Sewage Discharge Automatic discharge
or equipped with a
clean-up well
Automatic discharge
or equipped with a
clean-up well
Automatic discharge
or equipped with a
clean-up well
Material PE/glass
steel/stainless
steel304
PE/glass
steel/stainless
steel304
PE/glass
steel/stainless
steel304
Application:
Rainwater automatic filter device has high precision, because its filter diameter can be
up to 1.0mm, which is generally installed after interception basket and first flush device.
After the effective treatment in this device, rainwater can be directly used as irrigation
water.

16. Inspection (Access) Well
Pipe Size: DN800, the height of the pipe
is adjustable,to reach the surface of
ground.
In order to use this inspection well,
the pool size need to be 2000mm long,
2000mm wide and 1200mm high.
Pipe Connecting Box
This box is used to link up inlet pipe with
the tank system.
Box size L500xW500xH400mm
Suitbable for inlet pipe
DN200/300/400/500/600
Box size L1000xW500x1200mm
Suitable for inlet pipe
DN700/800
Geotextile
Geotextile is a permeable material,
used as a filter or for protecting membrane
The geotextile we suggest to use
short thread, nonwaven, 300g/㎡
Geomembrane
Geomembrane is a waterproof material
We suggest to use 1mm thick membrane

17. Chart of construction process for RHS (1)
Excavation Even out the foundation
Lay the first layer geotextile
Lay the membrane on the first layer of
geotextile and solder it
Lay the second layer of geotextile
on the top of the membrane
Install the tanks on geotextile

18. Chart of construction process for RHS (2)
Install the tanks Install the tanks
Seal the second layer of geotextile Seal the membrane at the top
Seal the first layer of geotextile Link up all pipes and backfill

19. Contact Details:
Shenzhen Doctor Rain Rainwater Recycling Co.,Ltd.
Address: Jialongda Science & Tecknology Park,
Street: No. 57 Yanchao Road ,
Town: Songgang,
District: Bao'an,
City: Shenzhen,
Province: Guangdong,
Country: China
Tel:+86-755-33561729
Fax:+86-755-33230209
Cellphone/Wechat/Whatsapp:+86-18820184898 ( Mr. Jeff Wang )
E-mail: sales@doctorrain.net
Website: https://www.doctorrain.net