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Gentlemen, thanks very much for the detailed description of bleach chemistry (very helpful) and the Stenner observations and recommendations. FWIW, my Stenner is several feet above the chlorine tank liquid level and pool return pipes so I gambled I'd be ok without the check valve. However, I...

My Sun2solar 1200 series (measures 9mils and made by Toile Soleil in Canada) last more than twice as long as the several others I've tried. Key difference is their bubbles are dome rather than "deli cup" shaped. My experience has been that that the "deli cup" bubbles fail at the sharp corner of...

Marvelous reply. Thank you! By "salt" do you mean Sodium Chloride or other salts like, Calcium? I assume Sodium from the Sodium Hypochlorite decomposition into the air? I will purge the tank and monitor things. I have no check valve in the tank > stenner pump > injector to pool return...

I have to drill (5/32") out the black plastic injector every 10 days or so due to plugging with the same sort of white deposit that plagued my prior liquidator setup. The removed deposit dissolves in water acidified with Muriatic acid. Diluting the bleach with water into the Stenner from 10...

No "magic number of turnovers per day". Schedules are for volume that I vary summer, spring/fall and winter based on what works and sweep, air purge, freeze prevention etc. Again, the question is whether others see cycles fail to execute and why? Thanks.

E.g. I have three cycles programmed, each later in the day, the forth is latest of all. Three cycles are enabled. I'm seeing the third not running at all despite the cycle time being needed to achieve the pool volume set. Volume:30K Three Enabled Cycles: 5:20am - 5:50am 6am - 9:50pm 11pm -...

I understand Calcium Carbonate solubility to DECREASE (unlike other salts) with increasing temperature. So I'm thinking my recent bout of WS was precipitated (pun intended) by CYA of 60, chlorine to top of LQ's white tube below funnel, CH of >350 and pH too high of near 8 AND high (100F)...

In addition to pool school:black algae teachings, I've found this works to address small patches on flat horizontal to near horizontal surfaces. Put ~1/4 trichlor puck in middle of mat with rib side of mat down. Cover area of combat with the mat. Restaurant supply stores have these cheap. Else...

Dory. C'mon, our 380 sweep is blue :)

Very useful, useable and complete app. Thanks so much! Some humble suggestions/requests for additions when you want to have some "fun" programming ;) 1. My muriatic acid is 14.5% (from OSH) which ain't on the list. Might you add it please? 2. Might you add some additional "measure" fields for...

Re: recommendation for East Bay,CA contractor to replace ski Thanks. I've had the work done by a friend that prefers to do commercial work. 20 years is a pretty long time.

Yeah, Pentair has a problem documenting this pump. Here's what I found: - suction face to midpoint of discharge = 10" - floor to midpoint of suction face = 9" - floor to discharge face = 11 1/2" Good luck.

I order a single bag on the phone from local Fastenal and they have it for me in ~ one week. FYI, Calcium Chloride sources have been discussed a lot on the forum (search Dowflake, Peladow Tetra94). There are a variety of recognized acceptable options, but what you can get at a reasonable price...

So to wrap up this saga... To clear blockage, I had skimmer and 1.5" lines to/from pump shed replaced with 2". Workers threw out the line before I got to see what blocked it, but it was a bunch of sharp bend elbows and even some flex tubing! I tore out and re-plumbed/wired pump shed with...

Welcome to TFP! The 50# bags of Excel Calcium product I bought locally at Fastenal (see my first post for details) works great and was much less expensive than I could find anywhere else.

Swell. I was hoping to use Liquid tight non-metallic and the associated approved fittings. Max. length looks like ~16 feet. My understanding (subject to AHJ acceptance) from NEC 680.21 is that liquid tight LNFC-B, specifically, is approved at any length if properly supported IF in a dwelling or...

I have to make some wiring changes asap inside an existing covered pool shed and am looking for feedback on conduit choices. Application is between electrical panel or Intermatic timers and pumps, a gas heater and a GFCI outlet. No wiring is LEAVING the shed, I'm just reconnecting things...

Re: recommendation for East Bay,CA contractor to replace ski Well rats. I can understand that, but a guy can dream... Though, I'm guessing there probably are nearly a million people in this "service area." Clearly, I need to introduce more folks around here to this marvelous forum. Thanks.

Re: recommendation for East Bay,CA contractor to replace ski Really? No one has a "guy?" Or is mine the only pool needing repair help -- you lucky dogs.

Well I give up. I can't seem to get enough differential pressure to dislodge whatever is there and my snaking around seems to have just made it worse. I suspect something is really wrong in there as I don't see much reference to needing to snake a suction line so there must be something...

I'm hoping to get some suggestions for someone who can replace the skimmer on my pool. Suction line to pump has a blockage I can't free or successfully snake and there are some leaks around tile into skimmer (currently A&B epoxied). I'm in the Orinda/Lafayette/Moraga area of Northern...

Have 23inHg suction on my 1.5" line. It seems like I've tried everything (ha ha), but have failed so far. Have 1.5" PVC adapted up to 2" at pump inlet. First, on pump inlet side I've tried: Water hose with two sizes of "Drain Kings" run at least 20 minutes. Water hose wrapped in towel run at...

Oye. Today I noticed that the skimmer is making an erratic "static" sound. Not very loud, but audible standing next to skimmer. With the basket and float valve removed it is louder. With my head at the skimmer, it sounds like radio inter-station static and comes and goes. I can feel vibration in...

Re suction leaks, I've checked and poured water around, lubed o-rings etc. I'll recheck the cover for cracks. Was cover screw on or clamp down type? I have the latter. Had a trench open for a while with the plumbing from pool shed to pool. There were at least four lines. Two 1.5" PVC and two...

Another round with drain kings of various sizes and a rag wrapped hose failed to dislodge anything from the suction line. I flushed from the pump basket back to the skimmer with basket and float valve removed for over 40 minutes total. I also used a 30" (all I had) 3/16" dia. snake to probe...

OK, I have it on order. I'll report back if something odd happens using it. Thanks guys!

There is only one line. Main drain comes up into skimmer under a low water level "valve" and then skimmer is plumbed back to pump shed. FWIW, main drain line appears to be copper up to skimmer. I'll try a Drain King again to flush basket back to skimmer and leave it on there a while. I was also...

This just in... Running vacuum at pump drain plug under the inlet port is 23 inHg on new, liquid filled, vacuum gage that reads zero with pump off. My decoder ring says that's a 11.3 psi drop and adding the 13.5 psi at filter, the pump is creating 24.8 psi of differential head or 57.3 ft. My...

Finding non pool store sources for Calcium Chloride to increase calcium hardness seems hard in areas without routine road freezing. Here in Northern CA, Fastenal.com can get you Scotwood Industries Excel Calcium chloride pellets for $32 per 50# bag for local pickup in their stores. The msds...

Should I expect to be able to disassemble the pump for wet end inspection w/o needing to replace anything (seals, gaskets,etc.)? Or should I first get those items as they'll likely be destroyed/not reusable? Looks like we're finally getting to the bottom of this! Thanks much Mark!