2025 Nelsen Corporation Catalog - Catalog - Page 149
Retention Tanks 5
Patent 1
1
#76009
A unique system with 2 built in mixing chambers and a swirl chamber that reduce a drop of water to
hundreds of microdrops allowing the chemical to mix and react 5 times faster than a standard retention
tank. This concept allows for the overall size of the system to be reduced substantially. In a Product
Testing Laboratory study performed by the WQA the 10" system outperforms a 80 gallon standard
retention tank, and the 12" system outperforms a 120 gallon standard retention tank. Test results are
available from your salesperson.
The 10" system should only be used with Hydrogen Peroxide or Ozone.
The system is constructed of all polyglass, noryl®, and PVC materials. It is pre-plumbed, 1" throughout
and has 3/4" drain for blow-down. Should there ever be a need for gas-off, a tapped port is built in and
capped off. 5 year warranty.
RETENTION TANK-1047-SS
Retention Tank - 10" x 47" Single Shaft
RETENTION TANK-1248-SS
Retention Tank - 12" x 48" Single Shaft
Light Commercial Retention Tank Systems
The Light Commercial Systems feature the 1-1/2 inch single shaft internals as well as 1-1/2 inch
In/Out tank head and has 3/4 inch drain for blow-down.
RETENTION TANK-1344-SS
Retention Tank - 13" x 44" Single Shaft
RETENTION TANK-1248-SS
Patent 1
1
#76009
Commercial Retention Tank Systems
The Tri-Shaft Retention Tank Systems feature six (6) built in mixing chambers and three (3) swirl
chambers, that reduce a drop of water to hundreds of micro drops, allowing the chemical to mix and
react 5 times faster than a standard retention tank. This concept allows us to reduce the overall size of
the system substantially.
The system is constructed of all polyglass, noryl, and PVC materials. It is pre-plumbed 1-1/2 inch
throughout and has 3/4" drain for blow-down. Should there ever be a need for gas-off, a tapped port is
built in and capped off.
TRI–SHAFT HIGH FLO SYSTEMS
RETENTION TANK-1344-TS
RETENTION TANK-1865-TS
REPLACEMENT DRAIN ASSEMBLIES
RT/ST-DRAIN ASSM
D1288
Retention Tank - 13" x 44" Tri-Shaft
Retention Tank - 18" x 65" Tri-Shaft
RT & Sand Trap Drain Assembly
Clack Bottom Tank Fitting
D1288
RT/SAND TRAP-DRAIN
ASSM ONLY
SYSTEM SPECIFICATIONS
Part Number
RETENTION TANK-1047-SS
RETENTION TANK-1248-SS
RETENTION TANK-1344-SS
RETENTION TANK-1344-TS
RETENTION TANK-1865-TS
Flow Rate
GPM
In/Out
Chamber Size
Drain
Number of
Mixing Chambers
Number of Swirl
Chambers
25
25
66
66
88
1"
1"
1-1/2"
1-1/2"
1-1/2"
1"
1"
1"
1"
1"
3/4"
3/4"
3/4"
3/4"
3/4"
2
2
2
6
6
1
1
1
3
3
RETENTION TANK-1344-TS
Call Nelsen Toll-Free from Anywhere in the U.S. - 800.362.9686
All prices and products subject to change without notice. ©Nelsen Corporation
5 - 11
Disinfection - Feed Pumps
Residential Retention Tank Systems
