TWM-30 System 25 Sq Ft Filter & 1/8 HP Pump w/o Trap - 520-4070LT



Model # 520-4070LT

By Waterway



Model # 520-4070LT

Product Description

The economical solution for filtering an above ground pool. Waterway's TWM (Total Water Management) package includes pump, cartridge or sand filter, hoses and base.


  • 25 square foot cartridge filter
  • 1/8 HP energy efficient pump (no trap)
  • 3 ft. NEMA cord
  • Two 6 ft. x 1.5" inch hoses with connectors
  • Equipment pad
  • Includes Intex connection fittings

?     Asked on 12/13/2016 by Marsha

I have an above-ground metal frame Heritage pool, approx. 3200 gal. It came with the Dirt Eater Skimmer (DES) filtration system, which has nearly 1/16 hp (44 watt) pump and 5 sq ft cartridge filter. As a result, I find myself rinsing the filter every 12-24 hrs, which is a real pain. Looking at replacing my DES system with this one. I prefer cartridge filters over sand. I want to be sure that a 25 sq ft filter is going to be sufficient.

A     Answered on 12/13/2016 by InyoPools Product Specialist Lennox H.

Hi, Marsha. A 25 square foot filter is sufficient for your size pool.

?     Asked on 7/16/2015 by joe vita

Do you stock the paper filters for my Waterway TWM-30?

A     Answered on 7/16/2015 by InyoPools Product Specialist Matt S.

Hello Joe, the generic cartridge replacement for the TWM30 is part number NFC2375

?     Asked on 10/25/2014 by Tom

How many gpm does it flow? Is it ok with salt water? Thank you.

A     Answered on 10/25/2014 by InyoPools Product Specialist Patrick P.

Hi Tom - The Gallon Per Minute (GPM) rating for this pump is 30 GPM. This pump is designed for use with standard pool salt systems which have a salt concentration of 2,500 parts per million (PPM) - 4,500 PPM salt. This system is not designed for sea water which has a much higher PPM of salt, typically sea water is 35,000 PPM of salt.

?     Asked on 5/1/2012 by Guest

I have a genfoam metal frame pool and i need an F2000C pump and skimmer combo or I need to know how to convert to another as I cannot seem to find the pump needed.

A     Answered on 5/1/2012 by InyoPools Product Specialist Patrick P.

We would suggest the Waterway Pump and Filter System (520-4070) listed here as a great upgrade to the F2000C pump system. You should much better with this system. 


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