No holes needs to be cleaned,
I upgraded to a 125 gallon pond
• 2, 50 gallon ponds
• 1, 35 gallon pond
*Has 3 pumps one pump has a light for under the water
*4 waterfall attachments
*3 Sprinkler attachments that go above the water
*Extra tubing
*A double cord to plug in 2 pumps in one