If it were vacant I would put around $10k into it right away to cure some issues (mainly cosmetic like flooring, paint, add dishwasher, refinish deck and maybe new tub.  

Others have a tool that looks like a weed eater that has blades on the end they stick it in the tank and stir it up before pumping , Those guys will be more expensive , but worth it .

Some details:Purchase: $45,000Rehab: $40,000 (This includes 15% unexpected cost)ARV: $150,000Annual Taxes: $4,000Rehab is scheduled to be 8 weeks, which includes kitchen, bathroom, add powder room, build deck, finish basement, refinish floors, paint, landscaping and a few other items.

Anyways, I have a rehab team headed by a licensed general contractor who specializes in flooring and decks.

Consider the situation in which the owner of an investment property leases it to a tenant who decides to throw a big party, during which one of the tenant's guests falls over a balcony (this happened a few years back in Chicago when a deck collapsed).

I design for a builder who builds about 70 homes a year well outside of Boston and his cost to customer is over $150 psf and that is vinyl siding, PT deck, prefinished flooring etc. 

decks?

Some examples of improvements include: a new deck, storm windows/doors, wall-to-wall carpeting, duct work, and insulationHere is link to a great forum discussion regarding this topic of Cap Ex vs Expenses: https://www.biggerpockets.com/forums/51/topics/70013-techniques-to-report-capital-improvements-as-repairs

Within the next 15 years, this home has $50,000 of vinyl siding to be replaced, $15,000 worth of HVAC units, $12,000 of Balcony Decks, $18,000 hurricane roof, $7000 appliances, and more!

Right or wrong, we have more insurance companies looking to specifically disqualifying an apartment complex that allows charcoal grills on wood decks or balconies.