throttling pump flow

I'm trying to fix a leak in my pool, 10,000 gallons, the suggestion from the manufacturer of "fix a leak" is to slow down the flow to 8 gallons per minute I'm sure I'm running somewhere around 40 or 45 GPM. This will allow the suspension to fill the leaking holes and not wash away before it cures. Is there an easy way to do this temporarily?
I'm going to use two (2) hoses, one between the skimmer and side return ports, and one between bottom intake and discharge. Pour the product in the pump basket and run these 2 loops for an hour, then shut everything off for 48 hours.

One way to throttle the flow, is to install a ball valve between the pump and filter. Flow can be safely throttled at that point.

Do NOT install a valve downstream of the filter, or upstream of the pump.

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