If it is original Septic tank, it may be at end of life
"The average lifespan of a septic tank is 15 to 40 years, but it can last longer depending on how well it's maintained. A septic tank made of concrete may last 50 years or more."
Check if the drain field has large trees close. The tree roots tend to grow toward the drain field and could slow down the drainage of waters and tehre is risk of clogging and flood (dirty water flood much tougher to handle than clean water flood).
Another thing you can ask is if there is sewer access point you could connect in the future. I converted one of my rental from ceptic tank to city sewer. You can search posting. Had a sewage backflow event (hassle, $, insurance premium increase...), Had caustic treatment but it did not work
My primary house is also on septic tank but the whole community is on septic tank. One neighbor had a new septic tank built before selling his house. There are stuff you can flood down the drain. tank pump a few years ($500?).
You need septic tank pumping company to inspect the tank. You can ask the contact for their septic tank pumping company. if the frequency went up, it might point to risk.
I suggest you not to bother. May need to get a spare pump and perhaps water level alarm system.
Cost in my conversion:
1. connection permit (different from city to city and lot to lot in the same city. My lot is one acre)
2. within house drainage pipe slope adjustment plumbing expense (I got hold of one plumber that agreed to use same copper pipes. Saved me quite a few k$. Septic tank is in backyard but city sewage connection in front yard close to street
3. digging and laying pipes outside of house
4. sprinkler repair (old sprinkler pipes were cut in construction and filling out septic tank)
5. lawn repair and landscaping (to fix soil settling)
My # is not a good reference to you. I think around $25-30k including $11k on permit.
看上了一个1987年的自住房，但Sewer是STEP System，我对这个不懂以前也没买过这类的房子，请教大家要注意什么，如果有什么问题比如老化维护不好inspection能查出来吗？
"The average lifespan of a septic tank is 15 to 40 years, but it can last longer depending on how well it's maintained. A septic tank made of concrete may last 50 years or more."
Check if the drain field has large trees close. The tree roots tend to grow toward the drain field and could slow down the drainage of waters and tehre is risk of clogging and flood (dirty water flood much tougher to handle than clean water flood).
Another thing you can ask is if there is sewer access point you could connect in the future. I converted one of my rental from ceptic tank to city sewer. You can search posting. Had a sewage backflow event (hassle, $, insurance premium increase...), Had caustic treatment but it did not work
My primary house is also on septic tank but the whole community is on septic tank. One neighbor had a new septic tank built before selling his house. There are stuff you can flood down the drain. tank pump a few years ($500?).
You need septic tank pumping company to inspect the tank. You can ask the contact for their septic tank pumping company. if the frequency went up, it might point to risk.
septic tank的污水是用drain field的，有可能被树根堵住。 STEP可能好一点。污水是抽到下水管道，只有固体留在里面。
I just googled STEP system. never heard of it before.
I suggest you not to bother. May need to get a spare pump and perhaps water level alarm system.
Cost in my conversion:
1. connection permit (different from city to city and lot to lot in the same city. My lot is one acre)
2. within house drainage pipe slope adjustment plumbing expense (I got hold of one plumber that agreed to use same copper pipes. Saved me quite a few k$. Septic tank is in backyard but city sewage connection in front yard close to street
3. digging and laying pipes outside of house
4. sprinkler repair (old sprinkler pipes were cut in construction and filling out septic tank)
5. lawn repair and landscaping (to fix soil settling)
My # is not a good reference to you. I think around $25-30k including $11k on permit.
pay permit fee. Call city and get a plumber to evaluate. Yours is probably just slope adjustment but it may not be possible.