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Thread: Hayward EC75a Bump Handle Movement Question

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    Hayward EC75a Bump Handle Movement Question

    Hello All,

    I was looking at my newly just purchased a Hayward EC75a DE filter and notice that the bump handle only moves a couple of inches up and down. Can anyone tell me what the normal length of movement should be for the handle?

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    Re: Hayward EC75a Bump Handle Movement Question

    bumped up for a response....I don't know the answer.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Hayward EC75a Bump Handle Movement Question

    1) Only bump it when the pump is off

    2) That is the normal range. The grid fingers and frame are seated in a rubber diaphragm. The rod attached to the handle is attached to the frame. The diaphragm will only move so much, but that's all it needs to shake the DE loose.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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    Re: Hayward EC75a Bump Handle Movement Question

    Thanks for the info!

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