@all
Came back to do a final update and close it out.
To sum it up, we dug out all the 1.5 inch pipe in the backyard (about 15-18ft, just by me and my dad) and eventually located where it jointed with the 4inch pipe. We replaced all with 4 inch pipe. Inside, the existing 1.5 pipe was modified...
@LittleInch The paranoid side of me couldn't help asking this: Should I also tie up the Zoeller M53 (small pump)'s vertical float and use the electronic hi-lo ones instead. We had a moderate rain event yesterday for about 2-3 hours, 0.3 inch -ish. The small pump ran 5.7s each cycle and it...
@LittleInch. Actually went ahead dig out all the 1.5inch and now replaced it with 4inch pipe, so the two discharging pipes (1.5 and 2) now discharge into a 4 inch pipe underground.
Now the problem with the pit, since it is a trash can, my contractor did not find a good way to suspend the...
@LittleInch, just to update and a few more questions
We are going with the option C, so adding a separate 2inch discharging line and connect it to the Liberty LE51A, and repurpose the Zoeller M53 with the existing 1.5inch pipe (will remove some uncessary right angle turns).
I recently noticed...
Sorry to repost, I was editing my reply while you were responding.
@LittleInch, I'd think having to run another pipe out would be as expensive as swapping/rerun the existing pipe if not more (I think the new pipe would still be out from the similar height of old pipe and then connected to the...
@LittleInch, I'd think having to run another pipe out would be as expensive as swapping/rerun the existing pipe if not more (I think the new pipe would still be out from the similar height of old pipe and then connected to the same 4inch gutter drain that goes to storm drain right? or you were...
@Artisi, thanks for your reply. I disagree that the roof drainage is the major factor in this as all my gutter downspouts are drained with underground pvc to the curb side, and all my gutter has gutterguard and I have not seen water backedup and overflow from the gutter in rainstorms.
I think...
Thank you keyepitts. All checked no obvious blockage, also other pipes do not contribute too much water if any.
@LittleInch Just want to follow up on the overflow sump adjacent to the current sump idea. You mentioned that the cross over should be above the current inlet pipe, I assume that...
Thank you, miningman for you reply.
Let me attach a sketch of the cross-section (view from the backyard). The sunroom and garage were addition added together, that downspout pvc you see goes underneath the deck at about the ceiling height (of the garage) then making a turn connected to the...
@littleInch, thanks for the follow-up. The space you referred to actually is the room for a possible 2nd pit, it's just that the opening to enter that little crawl space is pretty small and low (it's a square cut out from the brick wall, with bottom edge 5inches off the ground, one pix in my OP...
@cvg, thanks for the reply
@LittleInch Thanks for the reply and suggestions
You nailed the core of this problem, the wide range of flow rate vs single pump+smaller pit. Currently the 1/2 pump was put in with the mindset to deal with worst case scenario, but its on time each cycle probably was...
@cvg, If the discharging speed improves with larger pipe, can I set the pump starting water level higher to improve the cycling issue? I don't know what normally a sump pump's kick in water level is though, is it higher or lower than inlet pipes? Another question is what a normal sump size is, I...
@LittleInch
The two black draintiles seem to be some kinda of foundation drain at the house's perimeter, I don't really see too much water from them. There is a smaller pvc seems to be the AC drain which is also minimum, the big PVC pipe is the 4inch tube that's buried under the garage concrete...
@cvg Is the 1.5inch in/out the wall portion critical to change if I replace all the exposed pipes to 2-3 inch? If my estimate is right, the remaining 1.5 through the wall until getting tapped into the gutter drain, would be 2-3ft or less.
Also, if the pump has 2 inch port, would 3 inch pipe...
@littleinch, thanks for bearing with my lengthy posts and all. I've been battling this for the past year after several trials and errors, inherited this problem without the previous owner disclosing it.
To answer your questions, if the non-return valve is a checkvalve I'm not sure the pump has...
@cvg, thanks for your reply.
One of the pix showed the inside of that pit, and as I mentioned in OP, I was a little concerned that the inlets of those pipes (the white pvc is the one catch water from the grated channel) plus the two black draintiles seemed to be low compared to other typical...
@miningman thanks for the reply. I heard both pros/cons from using smaller/larger pipe than the pump's discharge port, please correct me if i'm wrong
Using smaller pipe than port
Pro: increase pressure of the water stream, so it would shoot higher/further, in my case it could be beneficial...
Newly found this forum and want to seek some insights on this water problem I've been trying to solve for our recently bought old house (built in 50s).
House we bought a year ago had this strange setup. In order to accommodate the addition of a 2-car garage and the sunroom above at the rear of...
Forgot one question，in my situation, I'm paranoid about the pumping going bad for whatever reason, that's where the thoughts of more reliable non-moving electric switch comes in mind. But other than that, do you think I need a secondary pump at all? Any other risk mitigation methods? Cheaper...
