Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to fiberglass a pond [title] Purchase fiberglass cloth, resin, and flowcoat. [step] You can buy the materials you need to fiberglass your pond from the hardware store or online. The typical fiberglass used for ponds is a 450 g chopped strand mat.

Ending1: However, fiberglass cloth can be found at any hobby store or many huge retailers. [title] Split the material over a tarp. Ending2: This is the thickness you will need for your pond. [title] Grind the fiberglass into a gentle, crumbly lump. Ending3: This fiberglass is durable enough to retain the water from a pond. Purchase an epoxy or polyester resin when you buy the fiberglass sheets. Ending4: You need 1.5 g fiberglass resin and 1.5 g water. [substeps] Fiberglass pickling kits exist to help both the water and the resin pick up and remove natural algae, although it can sometimes be more difficult to use.

Answer format: ending1/ending2/ending3/ending4