First look
The first problem is the door, wood rots! Letting all kinds of unwelcome things in like the outside weather, bugs, and rodents.
Vents are not good either
Vents lets in the air, rain, and everything else.. when you add the moisture you then start dealing with another problem.. Mold!
Drainage matting
drainage matting is put down first to give any water that might come in thought the ground, away to the pump.
Encapsulation
At 20 mils. thick, with polyester cord reinforcement inside the clean space crawl space liner is heavey and durable.
TripleSafe Sump Pump
The pump is installed for any water that might get in though the ground. And its also nice to have in case you have the (OH NO ) moment when the plumbling brakes. (Triple Safe Pump).
Lets tighten things up.
Last but very important the Ever Last door, A snug- fitting all-plastic door that stops air and moisture from entering.