By Waterway



Part # 4742-80

Manufacturer Code 550-4230

Dimensions 6.1" L x 6.65" W x 2.75" D

Alternate Part #'s 550-4230, 550-6730, 5504230, 14-270-1162, WW5506730

Product Description



?     Asked on 7/18/2015by Konrad

Does this part come with installation instructions? If not, can I find them on your website? Thank you.

A  Answered on 7/21/2015 by InyoPools Product Specialist Lennox H.

Hi Konrad, The Pressure Relief Valve Ass'y (550-4230) does not come with installation instructions. You can contact Waterway at 805.981.0262 for instructions.

?     Asked on 9/10/2020by Inyo Visitor

Does this part works for model 570-0060 ?


A  Answered on 12/17/2020 by InyoPools Product Specialist Hector F.

Hello, yes this is the correct pressure relief valve for the Waterway Crystal Water D.E. filter model 570-0060. 


Est. Repair Time

1 to 2 hrs

Tools Needed

Adjustable Wrench, Large size KNIPEX Pliers Wrench XL with mouth of 3 to 5 inches to grab..

3     0

Broken Valve (Pressure Relief valve assembly is replacement)

Written on 12/20/2019 by Guest

1. Follow the standard instructions for removing the upper lid of the cartridge
2. Use the wrench to loosen the wide nut inside holding the valve assembly to the
Need a wide mouth wrench.
3. Remove the old valve assembly
4. Install the new valve assembly = make sure the O rings are properly seated on each
side of the top hole when screwing the valve assembly tight. The O rings are
provided when you buy the assembly kit.
5. Tighten the wide nut once again using the wide mouth adjustable pliers.
6. Re-install the lid using the proper process for clamping the upper-lid and O Ring
on to the base unit.

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