I bought mine (as a first boat) ten years ago this year. The water in my bilge has been rainwater. I installed a 500gph (against lazaret bulkhead) with a thru-hull years ago and though useful at times, I weighed its advantages against risk. Statistically it is most likely a boat will sink as a result of a failed thru-hull, so last year I removed it and glassed over the hole, after repairing points of rainwater intrusion. Since I sail offshore and just think it prudent to still have an electric bilge pump I installed a 2000gph, purchasing that size following the logic I learned here- "the smaller the boat, the larger the bilge pump" for even a small hull breach will sink a small boat quickly. This one I have a hose attached to that I pull from the lazeret into the cockpit to drain. It is also removeable so that I can toss it over the side and pump water aboard for housekeeping. I considered if permanently installed I would put a thru-hull drain into the cockpit.
The boat wasn't equipped with a bilge pump because realistically, as it is designed to be used, it doesn't need one. Water aboard this boat, if properly maintained, can be removed with a hand pump and rags.
The sole pan of my boat was built with 1" holes drilled in the fore and aft vertical surfaces to allow flow. I replaced the forward v-berth bulkhead recently and found the forward hole glassed over during assembly, so drilled it out using a hole saw.
While on the subject of thru-hulls let me add I replaced my galley drain with a bronze one (with a ball valve). It became apparent its proximity put it at risk of getting banged and breaking off; this is the second plastic one installed in ten years and it became brittle (and snapped off when banged as I was removing my galley for reconditioning). My cockpit drain is next.