Flip simulation and particle life expectancy

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Hey,
I am simulating a Flip sim on a SOP level with a new solver. I am looking for a solution how to delete older particles with @age attribute but I can not find any settings in the corresponding nodes. Maybe I am missing something but on the other hand this may be done inside the flip solver. Is there any quick solution for this on the SOP level? If not I would appreciate pointing a finger in a right direction in case this has to be done inside the solver with wrangles and vex. Thank you in advance.
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SOP Flip can't age particles. You can do that inside DOPs.

You can hack the flip solver by diving inside and enabling Age particles and Reap particles.

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2024-03-11 17-13-11.mp4 (11.4 MB)

Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
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Hi, Thank you for the explanation. This helps.
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